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A change in body function or cell structure that might lead to disease or
health problems.
(Source:
ATSDR
Glossary of Terms
A usually chronic inflammatory disorder of the airways characterized by
intermittent episodes of wheezing, coughing, and difficulty in breathing,
sometimes caused by an allergy to inhaled substances.
(Source: American Lung Association
Appendix 4:
Glossary
The mass of air surrounding the Earth.
The atmosphere consists of nitrogen (78%), oxygen (21%), and traces of other gases such as argon, helium, carbon dioxide, and ozone.
The atmosphere plays an important role in the protection of life on Earth; it absorbs ultraviolet solar radiation and reduces temperature extremes between day and night. (Source: GreenFacts)
A volatile liquid solvent found in gasoline, with formula C6H6, that is used widely by the chemical industry. It is found in tobacco smoke, vehicle emissions and gasoline fumes.
Benzene exposure can cause cancer and other health complications. (Source: GreenFacts)
Bioaccumulation is used to describe the increase in concentration of a substance in an organism over time.
Bioaccumulative substances tend to be fat soluble and not to be broken down by the organism. (Source: GreenFacts )
Biodiversity is a contraction of biological diversity. Biodiversity reflects the number, variety and variability of living organisms.
It includes diversity within species (genetic diversity), between species (species diversity), and between ecosystems (ecosystem diversity). (Source: GreenFacts)
Biofuels are non-fossil fuels. They are energy carriers that store the energy derived from organic materials (biomass), including plant materials and animal waste.
They may be solid, such as fuelwood, charcoal and wood pellets; liquid, such as ethanol, biodiesel and pyrolysis oils; or gaseous, such as biogas. (Source: GreenFacts)
The total quantity or mass of organic material produced by living organisms in a particular area, at a given time. (Source: GreenFacts)
Any one of a group of diseases that occur when cells in the body become abnormal and have the potential to spread and establish growth in nearby tissues and other parts of the body (malignancy). (Source: GreenFacts )
A colorless, odorless, non-combustible gas, present in low concentrations in the air we breathe (about three hundredths of one percent by volume).
Carbon dioxide is produced when any substance containing carbon is burned. It
is also a product of breathing and fermentation. Plants absorb carbon dioxide
through photosynthesis.
(Source: The Pacific Forest Trust
Glossary
An odorless, colorless, and highly poisonous gas.
A substance, factor or situation that causes or induces cancer. (Source: GreenFacts )
The system that contains the heart and the blood vessels and moves blood
throughout the body. This system helps
tissues get enough oxygen and nutrients, and
it helps them get rid of waste products. The lymph system, which connects with
the blood system, is often considered part of the circulatory system.
(Source:
NCI
Dictionary of cancer
terms
The long-term fluctuations in temperature, precipitation, wind, and all other aspects of the Earth's climate.
It is also defined by the United Nations Convention on Climate Change as
“change of climate which is attributed directly or indirectly to human activity
that alters the composition of the global atmosphere and which is in addition to
natural climate variability observed over comparable time periods”
(Source:
CoRIS
glossary
The complex system of plant, animal, fungal, and microorganism communities and their associated non-living environment interacting as an ecological unit.
Ecosystems have no fixed boundaries; instead their parameters are set to the
scientific, management, or policy question being examined. Depending upon the
purpose of analysis, a single lake, a
watershed, or an entire region could be
considered an ecosystem.
(Source:
US EPA
Glossary of Climate Change Terms
The element with the symbol "As" and the atomic number 33. Its molecular weight is 74.92160 g. It can be classified as semi metallic and its colour is observed to be metallic grey. (Source: GreenFacts)
Hg. Mercury in its elemental (pure) form, that is, as a metal; hence the synonym metallic mercury. A shiny, silver-gray metal that is a liquid at room temperature. (Source: GreenFacts)
The European Environmental Agency (EEA) is one of the 15 specialised agencies of the European Union, which handle specific technical, scientific or management tasks. Operational since 1994, the EEA is based in Copenhagen.
"Its mission is to collect, prepare and disseminate timely, targeted, relevant and reliable information on the state and trends of the environment at European level. The founding regulation of EEA stipulates that it is open to countries that do not belong to the European Union but share its concern for the environment. Iceland, Liechtenstein and Norway have been members from the start, and 12 out of 13 candidate countries have joined in 2002 (...)."
(Source: EEA website
The increase in additions of nutrients [especially nitrogen and phosphorus] to
freshwater or marine systems, which leads to increases in plant growth and often
to undesirable changes in ecosystem structure and function.
(Source:
MA
The Food and Agriculture Organization (FAO) defines “forest” as a portion of land bigger than half a hectare (5 000m2) with trees higher than 5 meters and a tree canopy cover of more than 10 %, or with trees that will be able to meet these criteria.
It does not include land that is predominantly under agricultural or urban land use.
A general term for buried combustible geologic deposits of organic materials,
formed from decayed plants and animals that have been converted to crude oil,
coal, natural gas, or heavy oils by exposure to heat and pressure in the Earth's
crust over hundreds of millions of years.
(Source:
US EPA
Glossary of Climate Change terms
Metallic elements with high atomic weights, e.g. mercury, chromium, cadmium, arsenic, and lead.
They can damage living things at low
concentrations and tend to
accumulate in the food chain.
(Source:
US EPA
Drinking Water
Glossary
A state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.
The health of a whole community or population is reflected in measurements of
disease incidence and prevalence, age-specific death rates, and life expectancy.
(Source:
MA
Glossary
A reaction or process which entails only partial burning of a fuel. This may be due to a lack of oxygen or low temperature, preventing the complete chemical reaction. Carbon monoxide is produced as a byproduct from incomplete combustion of carbon.
A disease or the incidence of a disease within a population. (Source: GreenFacts)
Death. Usually the cause (a specific disease, a condition, or an injury) is
stated.
(Source:
ATSDR
Glossary of Terms
NOx is the generic term for a group of highly reactive gases, all of which contain nitrogen and oxygen in varying amounts [such as nitric oxide (NO) and nitrogen dioxide (NO2)].
Many of the nitrogen oxides are colorless and odorless. However, one common pollutant, nitrogen dioxide (NO2) along with particles in the air can often be seen as a reddish-brown layer over many urban areas.
Nitrogen oxides form when fuel is burned [...]. The primary sources of NOx are motor vehicles, electric utilities, and other industrial, commercial, and residential sources that burn fuels.
In the atmosphere, nitrogen oxides can contribute to formation of
photochemical ozone (smog) and have health consequences. They also lead to acid
rain and contribute to global warming.
(Source:
US EPA
NOx: What is it? Where does it come from?
Arsenic compounds containing carbon. They are mainly found in sea-living organisms, although some of these compounds have also been found in species living on land. (Source: GreenFacts)
Any substance, such as oxygen (O2) or chlorine (Cl2),
that will readily add (take on) electrons. The opposite is a reducing agent.
(Source:
US EPA
Drinking Water Glossary
Ozone is a form of oxygen having the molecular form of O3. It is a bluish, unstable gas with a pungent odour, found in two parts of the atmosphere: the stratosphere and the troposphere.
The ozone layer: The stratosphere contains a layer in which the concentration of ozone is greatest, the so called ozone layer. The layer extends from about 12 to 40 km. It shields the Earth from ultraviolet radiation's harmful health effects on humans and the environment. This layer is being depleted by human emissions of chlorine- and bromine-containing compounds.
Ground-level ozone: At ground level (in the troposphere), ozone is considered an air pollutant that can seriously affect the human respiratory system. It is a chemical oxidant and a major component of photochemical smog. (Source: GreenFacts)
Sum of all microscopic solid and liquid particles, of human and natural origin, that remain suspended in a medium such as air for some time. These particles vary greatly in size, composition, and origin, and may be harmful.
Particulate matter may be in the form of fly ash, soot, dust, fog, fumes etc. (Source: GreenFacts)
Persistent organic pollutants (POPs) are chemical substances that persist in the environment, bioaccumulate through the food web, and pose a risk of causing adverse effects to human health and the environment. This group of priority pollutants consists of pesticides (such as DDT), industrial chemicals (such as polychlorinated biphenyls, PCBs) and unintentional by-products of industrial processes (such as dioxins and furans).
Persistent Organic Pollutants are transported across international boundaries
far from their sources, even to regions where they have never been used or
produced.
(Source:
European Commission
Environment DG
POPs
A group of over 100 different organic compounds composed of several benzene rings. Some of them are persistent and carcinogenic.
PAHs are commonly formed during the incomplete burning of coal, oil and gas, garbage, or other organic substances like tobacco or charbroiled meat.
Generally, tobacco smoke is by far the most important source of exposure for humans. (Source: GreenFacts)
A precursor is a chemical which precedes and is the source of another. (Source: GreenFacts)
The organs that are involved in breathing.
These include the nose, throat, larynx, trachea, bronchi, and lungs. Also
known as the respiratory system.
(Source: St. Jude Children's Research Hospital Glossary
A group of organisms that differ from all other groups of organisms and that
are capable of breeding and producing fertile offspring. This is the smallest
unit of classification for plants and animals.
(Source:
OceanLink
Glossary of Common Terms and Definitions in Marine
Biology
A stroke is the sudden and instant death of brain cells following an interruption of the blood supply to the brain.
Ischemic strokes generally occur when a blood clot blocks one of the blood vessels in the brain resulting in a temporary or permanent loss of oxygen supply to the brain. They are the most common form of stroke, accounting for 80% of strokes.
Haemorrhagic strokes account for 20% of strokes and are caused by the rupture of a blood vessel in the brain, causing bleeding into the brain tissue and depriving some areas of oxygen.
Depending on the area of the brain affected, a stroke can cause the paralysis of the arms, legs and facial muscles, weakness, loss of vision and speech, unconsciousness, or death. (Source: GreenFacts)
A corrosive gas produced by the burning of fuels, such as coal and oil, that contain sulphur. It is also produced from sea spray, organic decomposition and volcanic eruptions.
When combined with water in the air, it produces a weak, corrosive sulfuric acid - an ingredient of "acid rain". (Source: GreenFacts)
The Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP) is an advisory body, established in 1969, that advises the United Nations (UN) system on the scientific aspects of marine environmental protection.
At present GESAMP is jointly sponsored by nine UN organizations with responsibilities relating to the marine environment, and they utilize GESAMP as a mechanism for coordination and collaboration among them. GESAMP functions are to conduct and support marine environmental assessments, to undertake in-depth studies, analyses, and reviews of specific topics, and to identify emerging issues regarding the state of the marine environment. GESAMP itself today consists of 16 experts, drawn from a wide range of relevant disciplines, who act in an independent and individual capacity. Studies and assessments are usually carried out by dedicated working groups, most of whose members are not sitting members of GESAMP but part of the broader GESAMP network.
GESAMP's UN sponsors: IMO, FAO, UNESCO-IOC, WMO, IAEA, UN, UNEP, UNIDO, UNDP.GESAMP
Source:
(Source:
www.gesamp.org/about
The level of magnitude of a system process at which sudden or rapid change
occurs.
(Source:
PhysicalGeography.net
Glossary of
terms
Able to poison or harm an organism. Toxic substances can cause adverse health effects. (Source: GreenFacts)
The lowest part of the atmosphere from the surface to about 10 km in altitude in mid-latitudes (ranging from 9 km in high latitudes to 16 km in the tropics on average) where clouds and "weather" phenomena occur. In the troposphere temperatures generally decrease with height. (Source: GreenFacts)
An expression of the degree to which a future condition (e.g., of an ecosystem) is unknown.
Uncertainty can result from lack of information or from disagreement about
what is known or even knowable. It may have many types of sources, from
quantifiable errors in the data to ambiguously defined terminology or uncertain
projections of human behavior. Uncertainty can therefore be represented by
quantitative measures (e.g., a range of values calculated by various models) or
by qualitative statements (e.g., reflecting the judgment of a team of experts).
(Source:
Millennium Ecosystem Assessment
Able to readily evaporate at normal temperatures and pressures. (Source: GreenFacts)
Any organic (carbon-containing) compound that evaporates readily to the atmosphere at room temperature.
VOCs contribute significantly to smog production and certain health problems.
VOCs often have odors, examples include gasoline, alcohol, and the solvents used in paints. (Source: GreenFacts)
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