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2. Look up the US National Ambient Air Quality Standards for criteria pollutants and find the equivalent standards for the European Union and the World Health Organization. Create a table that compares these standards- you will have to convert some numbers so the units are comparable

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Answer #1
US Air quality in Ug/M3 WHo Air quality in Ug/M3 EU air quality in Ug/M3
PM 2.5 in 24 hours = 65 PM 2.5 in 24 hours = 25 No daily limit. Annual limit for PM 2.5 = 25
PM 10 in 24 hours= 150 PM 10 in 24 hours= 50 PM 10 in 24 hours= 50

The above data is for maximum limits in given specific units in 24 hour period for particle matter maximum permissible limits as per US, WHo and EU.

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