Profile of pollutant fractions in nonurban suspended particulate matter.
D000388:Air / Q000032:analysis; D000397:Air Pollution; D000641:Ammonia; D001554:Benzene; D003300:Copper; D007477:Ions; D007501:Iron; D007854:Lead; D008345:Manganese; D009532:Nickel; D009566:Nitrates; D011156:Population Density; D013431:Sulfates
D007477:Ions; D009566:Nitrates; D013431:Sulfates; D007854:Lead; D008345:Manganese; D000641:Ammonia; D003300:Copper; D009532:Nickel; D007501:Iron; D001554:Benzene