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"smokestacks" - 4 õppematerjali

Air pollution in Japan
9
pptx

Air pollution in Japan

Air pollution in Japan Birgit Tohter Air pollution The presence of toxic chemicals or compounds (including those of biological origin) in the air, at levels that pose a health risk. The effects of air pollution is global warming, heart problems, acid rains etc. There are solutions like public transport, cleaning smokestacks, laws, renewable sources, The history Industrial activity in Japan devoloped rapidly after the World War II. People became really sick and described it as more horrible suffering than death. In the 1970s Japan managed to clean up without sacrificing growth by investing in pollution-control technologies. They made new laws. It was the start of "Japan's Pollution Diet". Today, Japanese cities are among the world's least polluted, according to the World Health Organization.

Keeled → Inglise keel
1 allalaadimist
Acid rains
8
pptx

Acid rains

it Occasional pH readings in rain and fog water of well below 2.4 have been reported in industrialized areas Industrial acid rain is a substantial problem in Europe, China, Russia and areas down- wind from them These areas all burn sulfur-containing coal to generate heat and electricity The problem of acid rain not only has increased with population and industrial growth, but has become more widespread The use of tall smokestacks to reduce local pollution has contributed to the spread of acid rain by releasing gases into regional atmospheric circulation Often deposition occurs a considerable distance downwind of the emissions, with mountainous regions tending to receive the greatest deposition An example of this effect is the low pH of rain which falls in Scandinavia Effects Many ecosystems are affected by acid rain. Bodies of water, such as lakes and rivers,

Keeled → Inglise keel
8 allalaadimist
Acid rains üldine kokkuvõte
1
docx

Acid rains üldine kokkuvõte

Occasional pH readings in rain and fog water of well below 2.4 have been reported in industrialized areas.[2] Industrial acid rain is a substantial problem in Europe, China,[8][9] Russia and areas down- wind from them. These areas all burn sulfur-containing coal to generate heat and electricity.[10] The problem of acid rain not only has increased with population and industrial growth, but has become more widespread. The use of tall smokestacks to reduce local pollution has contributed to the spread of acid rain by releasing gases into regional atmospheric circulation.[11][12] Often deposition occurs a considerable distance downwind of the emissions, with mountainous regions tending to receive the greatest deposition (simply because of their higher rainfall). An example of this effect is the low pH of rain (compared to the local emissions) which falls in Scandinavia. Many ecosystems are affected by acid rain

Keeled → Inglise keel
7 allalaadimist
Energy - põhjalik referaat energiast
62
doc

Energy - põhjalik referaat energiast

people who eat them. The Clean Air Act and the Clean Water Act require industries to reduce pollutants released into the air and the water. The coal industry has found several ways to reduce sulfur, nitrogen oxides, and other impurities from coal. They have found more effective ways of cleaning coal before it leaves the mine, and coal companies look for low-sulfur coal to mine. Power plants use "scrubbers" to clean sulfur from the smoke before it leaves their smokestacks. In addition, industry and government have cooperated to develop "clean coal technologies" that either remove sulfur and nitrogen oxides from coal, or convert coal to a gas or liquid fuel. The scrubbers and NOx removal equipment are also able to reduce mercury emissions from some types of coal. Scientists are working on new ways to reduce mercury emissions from coal-burning power plants, since the Environmental Protection Agency (EPA) has set tighter mercury limits for the future. NATURAL GAS

Keeled → Inglise keele foneetika ja...
19 allalaadimist


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