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Parameter | Threshold | |
---|---|---|
(1) For the purposes of regulation 11 (action plans), exceedance of the 1-hour average in respect of the alert threshold is to be measured or predicted for three consecutive hours. | ||
Alert threshold | 1-hour average(1) | 240 μg/m3 |
Information threshold | 1-hour average | 180 μg/m3 |
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