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7 Cards in this Set
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Pollution |
release of materials or energy into the environment by humans that will cause harm |
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Global warming(air pollution) |
Causes carbon dioxide, methane, nitrogen dioxide Damage >ice caps melt >increased risk of skin cancer >droughts and famine Control >use fewer fossil fuel >plant more trees >avoid deforestation |
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Acid rain(air pollution) |
Cause sulphur dioxide, nitrogen oxides Damage >low ph in rivers leads to death of fis >low pH of soil leads to leads to less photosynthesis by plants >health problems in humans >damage to concrete buildings Control >use natural gas and low sulphur coals >reduce effects by adding calcium carbonate to affected lakes |
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Carbon monoxide(air pollution) |
Cause car exhaust, gas appliances, cigarettes Damage >lung cancer >bronchitis control >fitting catalytic converters to vehicles >ensuring that the combustion of carbon based compounds takes place with enough oxygen present |
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eutrophication |
Cause nitrates and sulphates in sewage, farmyard slurry, detergents, fertilisers damage >increase in algae forming algal bloom >become so numerous they use up the nutrients in the water >the algae then die their aerobic decomposers use up so much oxygen that there is insufficient amounts left to sustain other aquatic life Control >building sewage treatment works planting vegetation along streambeds to slow erosion and absorb nutrients >prosecution of famers and industrialist who allow large spills of organic matter into freshwater habitats
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Suspended solids |
Cause domestic and industrial waste Damage makes water murky therefore no light can get to plants subsequently photosynthesis is prevented
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Radioactivity |
Cause nuclear power stations waste from hospitals Damage genetic defects death Control >seal radioactive waste above ground in containers of lead, glass or concrete >depositing radioactive waste in sealed containers in deep underground stores |
