Marchlyn Mawr

Latest Data: Updated 23/11/2018 12:00 GMT

Parameter Index Band Concentration Period
O3 No Data 8 Hour mean
NO2 No Data hourly mean
NO No Data hourly mean
NOXasNO2 No Data hourly mean

Note: Values are based on provisional data. Data are GMT hour ending.

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Parameter Parameter Name

Statistics for Marchlyn Mawr

Site Name Marchlyn Mawr
Site Type Remote
Easting, Northing 261300, 361900
Latitude, Longitude 53.136152, -4.074791
OS Grid Ref SH6130061900
Address Dinorwig Power Station,Llanberis,Gwynedd,Snowdonia
Site Comments Habitat immediately below the site is mainly unimproved acid grassland and bare rock. Two big diesel generators next inlet used about twice a year.
Monitoring Network: Welsh Automatic Rural pollution Monitoring
Parameter Date Started Date Ended
Nitrogen dioxide 15/07/1999
Modelled Wind Speed 01/08/2010
Nitrogen oxides as nitrogen dioxide 15/07/1999
Modelled Wind Direction 01/08/2010
Ozone 15/07/1999
Nitric Oxide 15/07/1999
Modelled Temperature 01/08/2010

The photographs show the site itself, and views looking North, East, South and West.

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