Habitat: Dwarf Shrub Heath
Grid Reference: NX450804
Grid Easting: 245500 to the 1km mid point (metres)
Grid Northing: 580500 to the 1km mid point (metres)
____________________________________________________________________________________
Pollutant: Ammonia
Critical Level:
1.0 - 3 µg m-3
Concentration: 0.72 µg m-3
Data Year: 2018 - 2020
Exceedance: [-0.28] to [-2.28] µg m-3
____________________________________________________________________________________
Pollutant: N Deposition
Critical Load Range:
Dry heaths: 10 - 20 Kg N/ha/year
Northern wet heath: Calluna-dominated wet heath (upland moorland): 10 - 20 Kg N/ha/year
Northern wet heath: Erica tetralix dominated wet heath: 10 - 20 Kg N/ha/year
For applying the best indicative critical load values for use in impact assessments please visit the following page.
Deposition: 20.03 Kg N/ha/year
Data Year: 2018 - 2020
Exceedance Ranges:
Dry heaths [10.03] to [0.030000000000001] Kg N/ha/year
Northern wet heath: Calluna-dominated wet heath (upland moorland) [10.03] to [0.030000000000001] Kg N/ha/year
Northern wet heath: Erica tetralix dominated wet heath [10.03] to [0.030000000000001] Kg N/ha/year
____________________________________________________________________________________
Pollutant: Nitrogen Oxides
Critical Level: 30 µg NOx (as NO2) m-3
Concentration: 2.94 µg NOx (as NO2) m-3
Data Year: 2018 - 2020
Exceedance: -27.06 µg NOx (as NO2) m-3
____________________________________________________________________________________
Pollutant: Ozone
Critical Level: 5000 ppb hours (based on(Semi-)natural vegetation communities dominated by perennials, 6 month growing season mid April- mid October)
Exposure: 746.95 ppb hours
Data Year: 2007 - 2012
Exceedance: -4253.05 ppb hours
____________________________________________________________________________________
Pollutant: Sulphur Dioxide
Critical Level: 20 µg m-3
Concentration: 0.27 µg m-3
Data Year: 2018 - 2020
Exceedance: -19.73 µg m-3
____________________________________________________________________________________
Pollutant: Acid Deposition
Critical Load Class & Values:
Class: Dwarf shrub heath
CLmaxS: 0.34 CLminN: 0.499 CLmaxN: 0.839 (keq/ha/yr)
Deposition: 1.53 (N: 1.43 | S: 0.2) (keq/ha/yr)
Data Year: 2018 - 2020
Exceedance: