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Blom WF ; Onderdelinden D

67 p in Dutch   1990

Toon Nederlands

English Abstract
In this report monitoring results of the National Air Quality Monitoring Network are presented covering the calendar year 1989 and the period April 1988 - April 1989. The components reported are SO2, black smoke, NO2, NOx (= NO2 + NO), NO, O3, OX (= NO2 + O3), and CO. In 1989 several summer smog episodes occurred which contributed to exceedence of Dutch air quality limit values for NO2 on a few stations. However exceedence of the Dutch draft limit values for O3 were not detected. At a few stations the limit values for black smoke were exceeded and at one station the maximal allowable hour value was exceeded once caused by an incidental polluting activity. Guide values for SO2 and NO2 were exceeded at 6% and 80% resp. of the total number of stations. The draft guide value for O3 was exceeded at all stations, ranging from 3 to 88 times.


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( 1990-02-28 )