On the opposite coast of North America another metropolis, New York City, produces greater quantities of pollutants than does Los Angeles but has been spared major air pollution disasters only because of favourable climatic and geographic circumstances.
He invented the electron capture detector, which has greatly enhanced our ability to detect small quantities of pollutants, and was critical to the detection of chlorofluorocarbons in the atmosphere and the attribution of their responsibility for ozone depletion.
In addition to taking existing resources, human technology and population size contribute large quantities of pollutants which lead to toxicity of remaining resources including air, water, land, soil, and prey.
And they inevitably bring environmental problems: sewage, agricultural run-off and increased burning of fossil fuels, all of which produce large quantities of pollutants, which find their way into the bay.As far as the health of marine ecosystems go, perhaps no single pollutant does more harm than nitrogen.
There is currently no evidence that houseplants remove significant quantities of pollutants in homes and offices.
The quantities of pollutants in the water may vary and the molluscs may reflect past rather than present values.
Background: Residential natural gas cooking burners (NGCBs) can emit substantial quantities of pollutants, and they are typically used without venting range hoods.
Within these domains, large quantities of pollutants are released near the ground from motor vehicle exhaust, then trapped and concentrated within the canyon walls.
Then, a known quantity of pollutant (e.g. CO, propane) was injected into the exhaust, so as to create an approximated pulse input into the DOC (e.g. with peak CO concentration = 3000 ppm).
During diffusion phase, more quantity of pollutant is extracted at low flowrate than at high flowrate.
A lower system cost would be incurred if a larger quantity of pollutant emission is allowable; meanwhile, the planning scheme with a higher cost would urge the environmental quality maintain at a higher level.
