Pollution simply refers to environmental degradation in one way or another. Something that causes pollution is normally refers to as a pollutant.
they considered them to be a polutant to their society.
When a river is polluted at its source, it means all the aquatic life and all other processes that depend on the river will be affected.
It depends on the source of the pollution but various sulphates, which contribute to "acid rain," are a common polutant.
Its Cheaper than Gasoline. Less Polutant. Gives High Performance because it has good power. Works well in cold climates. It cleans the varnish from inside the tank and deposits it from the filters. Hope this Helps :)
Salt will certainly do the plants no good at all and may kill some of the more delicate plants. I am baffled as to why on earth anyone would wish to add salt (a polutant) to a fresh water pond.
Nuclear energy (power) does not improve air quality in any way at all. It just does not create air polution when it is being used to make electricity. The problem with Nuclear power though is finding somewhere to put the radioactive waste which is a different kind of polutant.
If there was run off into the pond during the "bad weather" some polutant (s) may have got into the pond. A full chemical check of the water would be indicated or maybe if you can't do that a very large water change may help.
many ways... use of organic fertilizers instead of chemical fertilizers which are a major polutant, planting crops on the fringes of deserts to stop desertification, helping maintian the watershed. this is an extremely broad question, but the short answer is agriculture can help the environment when agriculturalists pay close attention to the link their craft has with the environment.
Lead is considered a primary pollutant when it is directly emitted into the environment, such as from industrial processes or gasoline combustion. However, it can also become a secondary pollutant through chemical reactions in the atmosphere, leading to the formation of lead compounds in the air.
The Clean Air Act, (CAC), is an act passed by the federal government in 1963, after many state governments passed legslistaions about the bad air pollution Link to plain text version below.
The exact causes is still not known but it is believed to be caused by inhalation of polutant. These stuffs cause immune reaction that somehow destroy your alveoli. And/or smoking can cause emphysema, weakening/eating away the thin skin tissue of your lungs.
Foam on the surface typically means the filtration is inadequate. The tank is polluted. The foam is caused by proteins that are not being removed by the filter. Either increase your filtration (this may just require cleaning the filter), or reduce the number of fish and other aquatic animals living in the tank. Frequent water changes (15-20%) per week can help avoid protein foam problems.