Local air pollution problems will be prevented and reduced to take account of the requirements of human health and welfare.
Limit concentrations of particulate matter The 24-hour mean concentration of particulate matter (PM10) will not exceed 50 µg/m3 on more than 25 days per year and 7 days per year by 2010.
Population of areas where the concentration of particulate matter exceeds 50 µg/m3 for more than 7 days per year
Limit concentrations of NO2 By 2010, the hourly mean concentration of nitrogen dioxide (NO2) will not exceed 150 µg/m3 for more than 8 hours per year.
Population of areas where the concentration of nitrogen dioxide exceeds 150 µg/m3 for more than 8 hours per year
Limit concentrations of SO2 The 24-hour mean concentration of sulphur dioxide (SO2) will not exceed 90 µg/m3.
Number of times per year the 24-hour mean concentration of sulphur dioxide exceeds 90 µg/m3
Limit concentrations of benzene By 2010, the annual mean concentration of benzene will not exceed 2 µg/m3, measured as urban background concentration.
Population of areas where the concentration of benzene exceeds 2 µg/m3, measured as urban background concentration