| Summary: |
These Regulations amend the 2000 Regulations. They introduce a second air quality objective for benzene of 5 micrograms per cubic metre or less, when expressed as an annual mean, to be achieved by 31 December 2010 (regulation 2(2)(a)). They also alter the air quality objective for carbon monoxide, which is to be achieved by 31 December 2003, to a maximum daily running 8 hour mean of 10 milligrams per cubic metre or less (regulation 2(2)(b)).
Amendments are also made to Part II (Interpretation) of the Schedule to the 2000 Regulations These amendments affect the air quality objectives for benzene, carbon monoxide and lead: the meaning of the expression "maximum daily running 8 hour mean" is explained and changes are made to the meaning of the expressions "hourly mean" and "annual mean" (regulation 2(3)).
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