Whereas it is desirable to improve the air quality standards revised in the atmosphere generally defined, based on the progress in the scientific, technological, and economic and social changes of the country live, on-demand power in section 34 of the Act to promote and preserve the national environmental quality 2535 (1992) command with the Prime Minister's Office at 71/2550 (2007) March 12, 2007, and the resolutions of the National Environment Committee in meeting 2/2550 (2007) 2550 (2007) revised January 18, when it air quality standards in General, and the following: Article 1, (3) the cancellation of article 2 of the Declaration by the national environment Board, issue 10 (2538 (1995)) issued in accordance with the Act to promote and preserve the quality of the environment's national air quality standards in 2535 (1992) the atmosphere in General, to April 17, 1995, and the following ideas instead."(3) the average of the 1-hour ozone gas in time must not exceed 0.10 parts in a million or less than 0.20 mg per cubic meter, and at 8 hours must not exceed 0.07 parts in a million or less than 0.14 mg per cubic meter," he said. Article 2, article 6 cancellation of the announcement of the National Environment Committee, issue 10 (2538 (1995)) issued in accordance with the Act to promote and preserve the quality of the environment's national air quality standards in 2535 (1992) the atmosphere in General, to April 17, 1995, and the following ideas instead.6 comments to "gauge the average of nitrogen dioxide or ozone, do the following:(1) a measure of the average nitrogen dioxide at 1 hour, use the apparatus and measuring chemical system or another system of sensors that pollution control Department for approval and.(2) a measure of the ozone averages at 1 hour or 8 hours at a time, use the apparatus and measuring chemical system or another system of sensors that pollution control Department for approval, "he said.
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