Environment
Environment
the physical and biological factors along with their chemical interactions that
affect an organism. Environment the surroundings of a physical system that may
interact with the system by exchanging mass, energy, or other properties.
Environment a series of LPs, cassettes and CDs depicting natural sounds
Build
environment constructed surroundings that provide the setting for human
activity, ranging from the large-scale civic surroundings to the personal
places. Knowledge environment social
practices, technological and physical arrangements intended to facilitate
collaborative knowledge building, decision making, inference or discovery. Natural
environment all living and non-living things. Social environment the culture that an individual lives in, and
the people and institutions with whom they interact. Physical environment in
ecology.
Environment biophysical
The biophysical
environment is the surrounding of an organism or population, and includes
the factors that have an influence in their survival, development and
evolution. The term can refer to different concepts, but is often used as a
short form for the biophysical environment. This
practice is common, for instance, among governments which entitle agencies
dealing with the biophysical environment with denominations such as. Whereas
the expression the environment is often used to refer to the global
environment, usually in relation to humanity, the number of biophysical
environments is countless, given that it is always possible to consider an
additional living organism that has its own environment.
Life environment interaction
All life that
has survived must have adapted to conditions of its environment. Temperature,
light, humidity, soil nutrients, etc., all influence any species, within any
environment. However life in turn modifies, in various forms, its conditions.
Some long term modifications along the history of our planet have been
significant, such as the incorporation of oxygen to the atmosphere. This
process consisted in the breakdown of by that used the carbon in their
metabolism and released the oxygen to the atmosphere. This led to the existence
of oxygen-based plant and animal life, the. Other interactions are more
immediate and simple, such as the smoothing effect that forests have on the
temperature cycle, compared to neighboring unfrosted areas.
Environmental science
Environmental
science is the study of the interactions within the biophysical
environment. Part of this is the investigation of the effect of human activity
on the environment, a sub discipline of biology and a part of environmental
sciences, is often mistaken as a study of human induced effects on the
environment. Environmental studies is a broader academic discipline that is the
systematic study of interaction of humans with their environment. It is a broad
field of study that includes the natural environment, built environments and
social environments.
Environmentalism is a broad social and
philosophical movement that, in a large part, seeks to minimise and compensate
the negative effect of human activity on the biophysical environment. The
issues of concern for environmentalists usually relate to the natural
environment with the more important ones being, and loss.
Natural environment
The
natural environment encompasses all and non living things occurring on or
some region thereof. It is an environment that encompasses the interaction of
all living species. The concept of the natural environment can be
distinguished by components.
Complete
ecological units that function as natural systems without massive human
intervention, including all vegetation, microorganisms, soil, rocks,
atmosphere, and that occur within their boundaries
Universal
natural resources is and physical phenomena that lack clear-cut boundaries,
such as air, water, and climate, as well as energy, electric charge, and
magnetism, not originating from human activity.
The natural
environment is contrasted with the build environment, which comprises the areas
and components that are strongly influenced by humans. A geographical area is
regarded as a natural environment.
It
is difficult to find absolutely
natural environments, and it is common that the naturalness varies in a
continuum, from ideally 100% natural in one extreme to 0% natural in the other.
More precisely, we can consider the different aspects or components of an
environment, and see that their degree of naturalness is not uniform. If for
instance, we take an agricultural field, and consider the and the of its soil,
we will find that whereas the first is quite similar to that of an undisturbed
forest soil, the structure is quite different.
Water on Earth
·
Oceans
·
Rivers
·
Streams
·
Lakes
·
Ponds
Oceans
An
ocean is a major body of, and a component of the hydrosphere. Approximately 71%
of the Earth's an area of some 362 million square kilometers is covered by
ocean, a is customarily divided into several principal oceans and smaller. More
than half of this area is over 3,000 meters 9,800 ft deep. Average oceanic
is around 35, and nearly all seawater has salinity in the range of 30 to 38
ppt. Though generally recognized as several separate oceans, these waters comprise one global, interconnected
body of salt water often referred to as the or global ocean. This concept of a
global ocean as a continuous body of water with relatively free interchange
among its parts is of fundamental importance to oceanography. The major oceanic
divisions are defined in part by the, various, and other criteria: these
divisions are in descending order of size the pacific ocean, the Atlantic
ocean, the Indian ocean, the southern ocean and the Arctic ocean .
Rivers
A
river is a natural usually, flowing toward an, a or another river. In a few
cases, a river simply flows into the ground or dries up completely before
reaching another body of water. Small rivers may also be termed by several
other names, including, creek and brook. In the river is generally classified
as a watercourse more than 60 feet 18 meters wide. The water in a river is
usually in a, made up of a between. In larger rivers there is also a wider
shaped by waters over-topping the channel. Flood plains may be very wide in
relation to the size of the river channel. Rivers are a part of the
hydrological cycle. Water within a river is generally collected from through,
recharge, and the release of water stored in glaciers and snowpacks.
Streams
A
stream is a flowing body of water with a current, confined within a bed and
stream banks. Streams play an important role in connecting and thus in
conserving biodiversity. The study of streams and waterways in general is known
as. Types of streams include creeks, tributaries, which do not reach an
ocean and connect with another stream or river, which are typically small
streams and sometimes sourced from a spring or sleep and tidal inlets.
Lakes
A lake from Latin lacus is a, a body of water that is localized to the bottom of. A body of water is considered a lake when it is inland, is not part of an, is larger and deeper than a, and is fed by a river. Natural lakes on Earth are generally found in areas and areas with ongoing or recent. Other lakes are found in or along the courses of mature rivers. In some parts of the world, there are many lakes because of chaotic drainage patterns left over from the last. All lakes are temporary over geologic time scales, as they will slowly fill in with sediments or spill out of the basin containing them.
Ponds
A
pond is a of, either natural or man-made, that is usually smaller than a. A
wide variety of man-made bodies of water are classified as ponds, including
designed for aesthetic ornamentation, designed for commercial fish breeding,
and designed to store thermal energy. Ponds and lakes are distinguished from
streams via speed. While currents in streams are easily observed, ponds and lakes
possess thermally driven micro-currents and moderate wind driven currents.
These features distinguish a pond from many other aquatic terrain features,
such as and tide pools.
Atmosphere, climate and weather
The atmosphere of the Earth serves as a key factor
in sustaining the planetary ecosystem. The thin layer of that envelops the
Earth is held in place by the planet's gravity. Dry consists of 78%, 21%, 1%
and other, such as. The remaining gases are often referred to as trace gases,
among which are the such as water
vapour, carbon dioxide, methane, nitrous oxide, and ozone. Filtered air
includes trace amounts of many others. Air also contains a variable amount of
and of water droplets and crystals seen as. Many natural substances may be
present in tiny amounts in an unfiltered air sample, including, and, various industrial
also may be present, such as elementary or in compounds, compounds, elemental,
and compounds such as sulphur dioxide.
The of the Earth's atmosphere plays an important
role in depleting the amount of radiation that reaches the surface. As is
readily damaged by UV light, this serves to protect life at the surface. The
atmosphere also retains heat during the night, thereby reducing the daily
temperature extremes.
Effects of global warming
The
potential dangers of are being increasingly studied by a wide global consortium
of scientists. These scientists are increasingly concerned about the potential
long-term effects of global warming on our natural environment and on the
planet. Of particular concern is how and global warming caused by, or
human-made releases of, most notably, can act interactively, and have adverse
effects upon the planet, its natural environment and humans' existence. It is
clear the planet is warming, and warming rapidly. The most recent report from
the Intergovernmental Panel on Climate Change the group of the leading climate
scientists in the world concluded that the earth will warm anywhere from 2.7
to almost 11 degrees Fahrenheit between 1990 and 2100. Efforts have been
increasingly focused on the of greenhouse gases that are causing climatic
changes, on to global warming, to assist humans, animal and plant species,
ecosystems, regions and in adjusting to
the. Some examples of recent collaboration to address climate change and global
warming include,
The United Nations framework treaty
and convention on Climate Change, to stabilize greenhouse gas concentrations in
the atmosphere at a level that would prevent dangerous.
The, which is the protocol to the international
Framework Convention on Climate Change treaty, again with the objective of
reducing greenhouse gases in an effort to prevent anthropogenic climate change.
The,
to identify, evaluate, and implement collective and cooperative ways to reduce
greenhouse gases in the region, focusing on a market-based cap-and-trade
system.
A
significantly profound challenge is to identify the natural environmental
dynamics in contrast to environmental changes not within natural variances. A
common solution is to adapt a static view neglecting natural variances to
exist. Methodologically, this view could be defended when looking at processes
which change slowly and short time series, while the problem arrives when fast
processes turns essential in the object of the study.
Climate
Climate encompasses the statistics of, atmospheric particle count and numerous other elements in a given region over long periods of time. Climate can be contrasted to, which is the present condition of these same elements over periods up to two weeks.
Climates can be according to the average and
typical ranges of different variables, most commonly temperature and
precipitation. The most commonly used classification scheme is the one
originally developed by. The Thornthwaite system, in use since 1948,
incorporates in addition to temperature and precipitation information and is
used in studying animal species diversity and potential impacts of
Weather is a set of all the phenomena occurring
in a given area at a given. Most weather phenomena occur in the, just
below the. Weather refers, generally, to day-to-day temperature and
precipitation activity, whereas is the term for the average atmospheric
conditions over longer periods of time. When used without qualification, weather is understood to be the weather
of.
Weather occurs due to density temperature and
moisture differences between one place and another. These differences can occur
due to the sun angle at any particular spot, which varies by latitude from the
tropics. The strong temperature contrast between polar and tropical air gives
rise to the. Weather systems in the, such as, are caused by instabilities of
the jet stream flow. Because the Earth's is tilted relative to its orbital
plane, is incident at different angles at different times of the year. On the
Earth's surface, temperatures usually range ±40 °C 100 °F to
−40 °F annually. Over thousands of years, changes in the Earth's orbit
have affected the amount and distribution of solar energy received by the Earth
and influence long-term climate
Surface differences in turn cause pressure
differences. Higher altitudes are cooler than lower altitudes due to
differences in compression heating. Weather forecasting is the application of
science and technology to predict the state of the for a future time and a
given location. The is a, and small changes to one part of the system can grow
to have large effects on the system as a whole. Human attempts to have occurred throughout human history, and
there is evidence that human activity such as and has inadvertently modified weather patterns.
Ecosystems
An ecosystem
also called as environment is a natural unit consisting of all plants, animals
and micro-organisms factors in an area
functioning together with all of the non-living physical factors of the
environment.
Central
to the ecosystem concept is the idea that are continually engaged in a highly
interrelated set of relationships with every other element constituting the in
which they exist, one of the founders of the science of, stated, Any unit that
includes all of the organisms in a given area interacting with the physical
environment so that a flow of energy leads to clearly defined tropic structure,
biotic diversity, and material cycles exchange of materials between living and
nonliving parts within the system is an ecosystem.
The
human ecosystem concept is then grounded in the deconstruction of the human nature,
and the emergent premise that all species are ecologically integrated with each
other, as well as with the abiotic constituents of their biotope.
A
greater number or variety of species or of an ecosystem may contribute to
greater resilience of an ecosystem, because there are more species present at a
location to respond to change and thus absorb
or reduce its effects. This reduces the effect before the ecosystem's structure
is fundamentally changed to a different state. This is not universally the case
and there is no proven relationship between the species diversity of an
ecosystem and its ability to provide goods and services on a sustainable level.
The
term ecosystem can also pertain to human-made environments, such as and
human-influenced ecosystems and can describe any situation where there is
relationship between living organisms and their environment. Fewer areas on the
surface of the earth today exist free from human contact, although some genuine
areas continue to exist without any forms of human intervention.
Biomes
Biomes
are terminologically similar to the concept of ecosystems, and are climatically
and geographically defined areas of ecologically similar climatic conditions on
the earth, such as communications of plants, animals and soil organisms often
referred to as ecosystems. Biomes are defined on the basic factors such as
plant structures, leaf types, plant spacing, and climate. Unlike ecozones,
biomes are not defined by genetic, taxonomic, or historical similarities.
Biomes are often identified with particular patterns of ecological succession
and climax vegetation.
Life
Evidence
suggests that has existed for about 3.7 years. All known life forms share
fundamental molecular mechanisms, and based on these observations, theories on
the origin of life attempt to find a mechanism explaining the formation of a
primordial single cell organism from which all life originates. There are many
different hypotheses regarding the path that might have been taken from simple via
precellular life to protocells and metabolism.
Although
there is no universal agreement on the definition of life, scientists generally
accept that the biological manifestation of life is characterized by, response
to, life may also be said to be simply the characteristic state of. In the
science of living organisms, life is
the condition which distinguishes active from, including the capacity for
growth, and the continual change preceding death.
A
diverse variety of living organisms life forms can be found in the on, and
properties common to these organisms, and are form with complex and heritable
information. Living organisms undergo, maintain, possess a capacity to, respond
to and, through, adapt to their environment in successive generations. More
complex living organisms can communicate through various means.
Biogeochemical cycles
Global
are biochemical cycles are critical to life, most notably those of water, oxygen,
carbon, nitrogen and phosphorus.
The
nitrogen cycle is the transformation of nitrogen and nitrogen-containing
compounds in nature. It is a cycle which includes gaseous components.
The
water cycle is the continuous movement of water on, above, and below the
surface of the Earth. Water can change states among liquid, vapor, and ice at
various places in the water cycle. Although the balance of water on Earth
remains fairly constant over time, individual water molecules can come and go.
The carbon cycle is the biogeochemical cycle by
which carbon is exchanged among the biosphere, pedosphere, geosphere,
hydrosphere, and atmosphere of the Earth.
The oxygen cycle is the movement of oxygen
within and between its three main reservoirs: the atmosphere, the biosphere,
and the. The main driving factor of the oxygen cycle is, which is responsible
for the modern Earth's atmospheric composition and life.
The phosphorus cycle is the movement of phosphorus
through the lithosphere, hydrosphere, and biosphere. The atmosphere does not
play a significant role in the movements of phosphorus, because phosphorus and
phosphorus compounds are usually solids at the typical ranges of temperature
and pressure found on Earth.
Wilderness
Wilderness is generally defined as a natural
environment on that has not been significantly modified by activity. The WILD
Foundation goes into more detail, defining wilderness as, the most intact,
undisturbed wild natural areas left on our planet those last truly wild places
that humans do not control and have not developed with roads, pipelines or
other industrial infrastructure. Wilderness areas and protected are considered
important for the survival of certain, ecological studies, solitude, and
Wilderness is deeply valued for cultural, spiritual, and reasons. Some nature
writers believe wilderness areas are vital for the human spirit and creativity.
The
word, wilderness, derives from the
notion of in other words that which is not controllable by humans. The word's
is from the wilderness, which in
turn derives from wilder
meaning wild beast wild + doer = beast, deer. From this point of view,
it is the wildness of a place that makes it a wilderness. The mere presence or
activity of people does not disqualify an area from being wilderness. Many ecosystems that are, or have been, inhabited or
influenced by activities of people may still be considered wild. This way of looking at wilderness includes areas within which
natural processes operate without very noticeable human interference.
Wildlife
includes all non- plants, animals and other organisms. Domesticating wild plant
and animal species for human benefit has occurred many times all over the
planet, and has a major impact on the environment, both positive and negative.
Wildlife can be found in all ecosystems. Deserts, rain forests, plains, and
other areas including the most developed sites all have distinct forms of
wildlife. While the term in popular culture usually refers to animals that are
untouched by human factors, most scientists agree that wildlife around the
world is impacted by human activities.
Challenges
It
is the common understanding of natural environment that
underlies a broad, and movement that advocates various actions and policies in
the interest of protecting what nature remains in the natural environment, or
restoring or expanding the role of nature in this environment. While true
wilderness is increasingly rare, wild
nature can be found in many locations previously inhabited by humans.
World
Environment Day
World Environment Day is an annual event
that is aimed at being the biggest and most widely celebrated global day
for positive environmental action. World Environment Day activities take
place all year round and climax on 5 June every year, involving everyone from everywhere.
The
World Environment Day celebration began in 1972 and has grown to become one of
the main vehicles through which the United Nations stimulates worldwide
awareness of the environment and encourages political attention and action.
Through
World Environment Day, the United Nations Environment Programme is able to
personalize environmental issues and enable everyone to realize not only their
responsibility, but also their power to become agents for change in support of
sustainable and equitable development.
World
Environment Day is also a day for people from all walks of life to come
together to ensure a cleaner, greener and brighter outlook for themselves and
future generations.
Everyone
counts in this initiative and World Environment Day relies on you to make it
happen! We call for action organize a neighbourhood
clean-up, stop using plastic bags and get your community to do the same, stop
food waste, walk to work, start a recycling drive the possibilities are
endless.
What Is the Environment
The
environment is something you are very familiar with. It's everything that makes
up our surroundings and affects our ability to live on the earth the air we
breathe, the water that covers most of the earth's surface, the plants and
animals around us, and much more.
In
recent years, scientists have been carefully examining the ways that people
affect the environment. They have found that we are causing air pollution,
deforestation, acid rain, and other problems that are dangerous both to the
earth and to ourselves. These days, when you hear people talk about the
environment , they are often referring to the overall condition of our planet,
or how healthy it is.
Environment Early Childhood
Environments
is the early childhood professional’s source for the best and most appropriate
early childhood classroom equipment, children’s furniture, cribs, educational
toys, and math, science, and language curriculum materials for child care and
early education. You’ll find Family Style Dining, building blocks, dramatic
play props, trikes, wooden manipulative and other early childhood classics plus
tons of Environments exclusives. This is the right stuff for the social growth and cognitive development of
children from infants and toddlers through preschool, pre-k, and kindergarten
ages.
Wining Environment Pallets
Pallets
are an important component of most transport of goods. There are probably every
second millions of pallets that are on their way to a destination, or are
placed in a rack in a warehouse somewhere in the world. Lots of pallets are
certainly also piled outside a warehouse or a production building in
anticipation of their future destiny. Allowing pallets to be returned should be
beneficial from,
Natural
Cycles Purifies Waste Water
There
are lots of drains that are not connected to municipal waste water treatment
plants. Only in Sweden, there are 700,000 private waste water drains, of which
60 percent are for homes and vacation cabins. Many of the cabins are located
near waterways and lack water purification or have malfunctioning treatment
systems. This contributes to the eutrophication of lakes and seas. Another
problem is that,
Sustainable Polymers with
Great Potential
Venture
Cup is a competition that aims to stimulate new business ideas. In the
Environment & Energy class, research company Cyclicor took home first prize
in the regional finals in southern Sweden in 2013. The company’s mission is to
develop environmentally friendly polycarbonate and polyurethane resins.
Cyclicor was founded by Lund researchers Kristopher Cook and Sang-Hyun Pyo.
7 Kinds of Environmental Pollution
There are actually SEVEN different kinds of
environmental pollution. Most people can name air, water and land do you know
the other four Or examples of what constitutes actual pollution in each category.
Listed below are each kind and examples to help you understand just how we can
affect the environment and each other.
According
to the dictionary, air pollution is the contamination of air by smoke and
harmful gases, mainly oxides of carbon, sulfur, and nitrogen.
Some
examples of air pollution include,
Exhaust
fumes from vehicles
The
burning of fossil fuels, such as coal, oil or gas
Harmful
off gassing from things such as paint, plastic production and so on
Radiation
spills or nuclear accidents
Air
pollution is linked to asthma, allergies and other respiratory illnesses. You
can more about how the here.
Land Pollution
Land
pollution is the degradation of the Earth's surface caused by a misuse of
resources and improper disposal of waste.
Some
examples of land pollution include,
Litter
found on the side of the road
Illegal
dumping in natural habitats
Oil
spills that happen inland
The
use of pesticides and other farming chemicals
Damage
and debris caused from unsustainable mining and logging practices
Radiation
spills or nuclear accidents
Land
pollution is responsible for damage done to natural habitat of animals,
deforestation and damage done to natural resources, and the general ugly-ing up
of our communities.
Light Pollution
Light
pollution is the brightening of the night sky inhibiting the visibility of
stars and planets by the use of improper lighting of communities.
Some examples of what causes light pollution,
Street
lamps that shine light in all directions, instead of with a hood to point light
downward toward the street.
Unnecessary
lights, especially around the home
Light
pollution uses more energy by shining more light up instead of down, may affect
human health and our sleep cycles and most importantly, corrupts our kids telescopes
and their curiosity.
Noise Pollution
Noise
pollution is any loud sounds that are either harmful or annoying to humans and
animals.
Some examples of noise pollution,
Airplanes,
helicopters and motor vehicles
Construction
or demolition noise
Human
activities such as sporting events or concerts
Noise
pollution is disruptive to humans' stress levels, may be harmful to unborn
babies, and drives animals away, causing nervousness and decreasing their
ability to hear prey or predators.
Thermal pollution
Thermal
pollution is the increase of temperature caused by human activity.
Warmer
lake water from nearby manufacturing using cool water to cool the plant and
then pump it back into the lake
Included
in thermal pollution should also be the increase in temperatures in areas with
lots of concrete or vehicles, generally in cities
These
kinds of environmental pollution can cause aquatic life to suffer or die due to
the increased temperature, can cause discomfort to communities dealing with
higher temperatures and can even affect plant-life in and around the area.
Visual pollution
Visual
pollution is what you would call anything unattractive or visualiing damaging
to the nearby landscape. This tends to be a highly subjective topic, as we all
find different things attractive and unattractive.
Some examples of visual pollution,
Skyscrapers
might block the view of a mountain
Graffiti
or carving on trees, rocks or other natural landscapes
Billboards,
litter, abandoned homes and junkyards could also be considered among three kins
of environmental pollution
Mostly
visual kinds of environmental pollution are annoying, although some may say
they are also depressing such as when they can't see a view through a
billboard.
Water pollution
Water
pollution is the contamination of any body of water lakes, groundwater, oceans,
etc,
Some examples of water pollution,
Raw
sewage running into lake or streams
Industrial
waste spills contaminating groundwater
Radiation
spills or nuclear accidents
Illegal
dumping of substances, or items in bodies of water
Biological
contamination, such as bacteria growth
These
kinds of environmental pollution are linked to health issues in humans, animals
and plant-life. You can read more about how the environment is affecting health
here,
Urban Environmental Pollution
Urbanization
continues at a record pace all over the world, especially in emerging and
developing economies. China has decided that the best way for the government to
deliver essential goods and services to rural people is to encourage them to
move to existing and or new cities and become urban dwellers. Cities are seen
as destinations, especially for young people in search of employment,
education, social contacts and cultural advantages. The future for the human
race is in cities.
We need to learn more
about cities and how they function. We know that they consume enormous
quantities of materials and energy and release large quantities of wastes.
Cities are the source of air, water and soil pollutants. Heat islands and CO2
domes, combined with particulates and ozone affect human health. Lack of park
and green space disconnects urban residents from the natural world and may
have adverse psychological effects.
In
UEP2014 we will continue to explore the nature of the urban environment and how
it affects human health and well-being.
Urban
environments and how they function
CO2
greenhouse gases and warming
Air,
water and soil pollutants
Human
health in the city
Vegetation
in the city
Built
environment and urban climate
Alleviation
of urban stress problems
Environmental Pollution
Environmental Pollution is an international journal that seeks to publish
papers that report results from original, novel research that addresses
significant environmental pollution issues and problems.
Business Environment
We
have produced a beautiful 10 min demo film jain enlightenment - A Way of Life
and also working on 'Palitana - City of Temples on the Hill' to inform and
educate America about Ahimsa, Anekantvad, Aparigrah involving Forgiveness,
Compassion, and Peace.
We returned from India with over 200 hours of film and are also producing a series of films on Legend of Lord Bahubali, King Adhinathan, Lord Mahavira and Sacred Pilgrimages - including Ranakpur, Ellora etc. to show Jain Images of Perfection.
The
combination of internal and external factors that influence a company operating
situation. The business environment can include factors such as, client and
suppliers, its competition and owners, improvements in technology, law and
government activities, and market social and economic trends.
International Journal of
Business Environment
Environmental dynamism is a widely
explored construct in organization theory strategic management literature. It
has growing importance according to the degree of instability turbulence of
such key operating concerns as market industry conditions as well as more
general technological, economic, social, political forces. An organization’s
ability to adapt to changing environmental circumstances is key to survival. IJBE examines how firms behave under
different types of environment and the external influences on businesses. It
addresses a wide variety of business decisions processes activities within the
business environment.
Environmental scanning
Environmental scanning is one essential
component of the global environmental analysis, environmental and environmental
assessments complete the global environmental analysis. The global
environment refers to the macro environment which comprises industries,
markets, companies, clients and competitors. Consequently, there exist
corresponding analyses on the micro-level. Suppliers, customers and competitors
representing the micro environment of a company are analyzed within the
industry analysis.
Environmental scanning can be defined as the
study and interpretation of the political, economic, social and technological
events and trends which influence a business, an industry or even a total
market’. The factors which need to be considered for environmental scanning are
events, trends, issues and expectations of the different interest groups.
Issues are often forerunners of trend breaks. A trend break could be a value
shift in society, a technological innovation that might be permanent or a
paradigm change. Issues are less deep-seated and can be a temporary short lived
reaction to a social phenomenon. A trend can be defined as an environmental
phenomenon that has adopted a structural character.
Macro Environment
There are a number of common approaches how the
external factors, which are mentioned in the definition of Kroon and which
describe the macro environment, can be identified and examined. These factors
indirectly affect the organization but cannot be controlled by it. One approach
could be the PEST analysis. PEST stands for political, economic, social and
technological. Two more factors, the environmental and legal factor, are
defined within the PESTEL analysis,
The segmentation of the macro environment
according to the six presented factors of the PESTEL analysis is the starting
point of the global environmental analysis.
Environmental factors
Competitive advantage
Waste disposal
Energy consumption
Pollution monitoring
Mesoenvironment
The meso-level
is settled between the macro- and the micro-level. This field deals with the
design of the specific environment of the enterprises. It is of decisive
importance that the layout of the physical infrastructure transport,
communication and power distribution systems and of the sector policies,
especially of the education, research and technology policy, are oriented
towards competitiveness. In addition the design of the trade policy and systems
of rules for example environmental norms and a technical safety standard, which
contributes to the development of national advantages of competition, is
relevant. Like on the micro-level, on the meso-level new patterns of
organization and steering must be developed. The state shall give impulses and
mediate between enterprises, associations, science and intermediate
institutions. The design of locations becomes like that a continuous process on
the basis of the efforts of enterprises, science and state as well as of the
determined cooperation of private and public agents.
Environmental air pollution and biomonitor.
All
the chemicals compounds or elements that are released into the atmosphere are
primarily as a result of human activities, and which can cause damage in living
organisms, are considered air pollutants, Moriarty F. [2]. The majority of the
heavy metals sulphured and nitrogen compounds that are considered pollutants originate
from anthropogenic sources, Pacyna JM & Pacyna EG [3]. Sources of these
compounds include forest fires, biological decomposition processes, and waste
products from industries and due to gases released from different stores. The degree and
extent to which emissions are spread depends on the type of emission source,
composition of the emissions and the weather conditions. The majority of the
emissions remain close to the source, but some can travel for thousands of
kilometers. In general, sculpture and nitrogen compounds occur in the
atmosphere in gaseous form, and heavy metals are attached to particles. Air
quality can be monitored by measuring the pollutants directly in the air or in
deposition, by constructing models depicting the spread of pollutants, or by
using biomonitor, Conti ME &, Cecchetti G [4].
Direct
measurements provide objective information about the level of pollutants, but
they are expensive and there is a risk of contamination when determining low
concentrations. The models provide information about extensive areas and they
can be used to produce predictions of future air quality. However, their
accuracy is dependent on the quality of the data used in constructing the
models.
Biomonitor provide information on both the quantity of pollutants and their effect on the occurrence and condition of Biomonitor. Although the methods are fast and inexpensive, they only provide a relatively approximate picture of air quality and the deposition of pollutants. The term biomonitor is used to refer to an organism, or a part of it, that depicts the occurrence of pollutants on the basis of specific symptoms, reactions, morphological changes or concentrations, Puckett KJ [5].
There is considerable variation in the use of the terms bioindicator and Biomonitor, but bioindicator generally refers to all organisms that provide information on the environment or the quality of environmental changes, and Biomonitor to organisms that provide quantitative information on the quality of the environment.
Organisms can be classified according to their origin into passive Biomonitor, in which organisms that occurs naturally in the study area are monitored, and active Biomonitor, in which the organisms are brought into the research area under controlled conditions for a specific period of time. A good accumulation indicator of air pollutants should meet the certain requirements, Garty J [6].
It should
accumulate pollutants from the air in the same way and to the same degree under
different conditions. The pollutants should be easily measured and the
measurements should provide information about the level of pollutant
deposition.
In order to determine the state of the ecosystem in relation to the pollutant under study, the state of the ecosystem in the background area should also be known. The background level is usually considered to be the “natural” level at which emissions have as small an effect as possible. Mosses and lichens are considered to be best for use as Biomonitor of air pollutants, Tyler G [7].
Lichen is a
symbiotic organism composed of a fungal and algae. The name of the lichen
species is given by its fungal partner. The fungal partner benefits by getting
sugar from the algae which is synthesized through photosynthesis. The algae
partner gets protection as the fungi normally forms the outer surface. This
protection is mostly against weather and radiation which helps the algae to
have more stable and constant environment.
In this work the epiphytic species is used because of its high sensitivity to air pollution.
Most lichen species obtain their nutrients from wet and dry deposition, Markert BA, Breure AM & Zec [8].
They possess many properties that make them suitable for monitoring purposes. Air pollutants are deposited on lichens in aqueous solution, in gaseous form or attached to particles. The accumulation of pollutants occurs through a number of different mechanisms: as layers of particles or entrapment on the surface of the cells, incorporation into the outer walls of the cells through ion exchange processes, and metabolically controlled passage into the cells [9]. A high proportion of the pollutant load accumulates in lichens through wet deposition.
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