The below table provides information on the amendment history of this AQMA
|AQMA Name||AQMA Status||Pollutants||Date|
|Hertsmere AQMA No. 3||Declared||Nitrogen dioxide NO2||08/04/2003|
- 08/04/2003, Nitrogen dioxide NO2 - Annual Mean
Hertsmere AQMA No. 3 (Hertsmere Borough Council)
08/04/2003, An area comprising the domestic properties 31-39 Blanche Lane, South Mimms.
Source: Highways Agency Road
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