It's short for Pollutant Standard Index. Indicator of one or several pollutants can be used to inform the public about the possibility of harmful effects on health of air pollution in major cities.
01:36, 27 November 2012
Absorbed through the leaves of the plant, and ...
A machine that sorts organic from inorganic matter for ...
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Share a term with millions of users around the world and ...
Potash is the only source of potassium fertilizer; there ...
MSDS: Material safety data sheet (MSDS) is a form ...
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