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Definition
| accumulation of chemicals from the environment into organism |
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Definition
| where chemicals concentrations increase as they move into higher trophic levels, not all chemicals biomagnify |
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Definition
| chemicals 'hop' from region to region, end up in Northern/colder regions, snow pulls chemicals out of the atmosphere |
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Term
| What does the dose makes the poison mean? |
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Definition
| the chemical and the concentration that the chemical is in depends on how poisonous it is |
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Term
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Definition
| how toxic is the chemical |
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Definition
| probability that toxicity will occur |
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Definition
| the capacity of a chemical to cause injury |
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| the science of defining the concentration or doses at which chemicals cause injuries to organisms |
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Definition
| Lethal dose, killing 50% of the population |
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Term
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Definition
| exposure lasting short duration |
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Definition
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| determining how dangerous a chemical is |
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Definition
| atoms of the same element with a different number of neutrons |
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Term
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Definition
unit of measurement for a trace gas in the Earths atmosphere
0.01 mm at ground level |
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Term
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Definition
| scenarios generally presented in IpCC reports, representing the outcomes of distinct narratives of economic development and demographic and technological change |
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Term
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Definition
| past ice ages are linked to regular variations in the Earths orbit around the sun |
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Term
| Enhanced greenhouse effect |
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Definition
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Term
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Definition
| different combinations of: carbon, chlorine, and flourine |
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Term
| What do greenhouse gasses do? |
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Definition
| absorb heat into the atmosphere |
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Term
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Definition
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Term
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Definition
| release of sulphur dioxide and nitrogen oxides that undergo reactions in the atmosphere. |
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Term
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Definition
| concentration of hydrogen ions in a solution |
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Term
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Definition
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| Does acidification happen right away? |
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Definition
-no, takes time
- some of the acidity is buffered by the soil |
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Term
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Definition
| estimate of the maximum level of S and N deposition that a system can receive without biological damage occurring |
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Term
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Definition
| a colourless, odourless gas and a major component of smog |
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Definition
| colourless gas that smells like burnt matches |
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Definition
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| this government department managed the science for understanding the allowable catch in the cod industry |
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Definition
| Department of Fisheries and Oceans |
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Term
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Definition
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| The ozone layer refers to a decreased concentration of ozone in what part of atmosphere? |
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Definition
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| What compound makes certain areas and soils less susceptible to acid deposition? |
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Definition
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Term
| What phenomenon is critical to understanding why ozone levels drop so much over the Antarctic in southern hemisphere spring? |
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Definition
| Polar stratospheric clouds |
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Term
| One of the primary challenges in restoring an ecosystem is answering what question? |
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Definition
-What is natural
-What state are we restoring the system to |
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Term
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Definition
| excessive loading of plant nutrients, especially nitrogen and phosphorus and organic matter |
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Term
| Restoring and ecosystem involves restoring these two characteristics |
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Definition
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Term
| Unpolluted, natural precipitation has this pH? |
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Definition
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Term
| Acid rain can damage ecosystems by mobilizing these chemicals? |
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Definition
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Term
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Definition
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Term
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Definition
| expansion in environmental groups |
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Term
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Definition
| contraction of environmental groups |
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Term
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Definition
| small groups that mobilize around issues of community concern |
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Term
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Definition
| Organizations based around the collection and analysis of scientific of legal data, which is then used to inform policy |
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Term
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Definition
-industrialization is not sustainable
-based on the conservations of forever of the agricultural soils of the world |
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Term
| Hills first law of environmental science |
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Definition
| pessimism is a self-fulfilling prophesy |
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Term
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Definition
| Equitable and fair distribution of resources and environmental risks, within and between generations |
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Term
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Definition
| competitiveness remains paramount |
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