Habitat: Dwarf Shrub Heath
Grid Reference: TQ456294
Grid Easting: 545500 to the 1km mid point (metres)
Grid Northing: 129500 to the 1km mid point (metres)
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Pollutant: Ammonia
Critical Level:
1.0 - 3 µg m-3
Concentration: 1.05 µg m-3
Data Year: 2019 - 2021
Exceedance: [0.05] to [-1.95] µg m-3
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Pollutant: N Deposition
Critical Load Range:
Arctic, alpine and subalpine scrub habitats : 5 - 10 Kg N/ha/year
Dry heaths: 5 - 15 Kg N/ha/year
Northern wet heath: U? Callunadominated wet heath (upland): 5 - 15 Kg N/ha/year
Northern wet heath: `L? Erica tetralixdominated wet heath (lowland): 5 - 15 Kg N/ha/year
Deposition: 13.75 Kg N/ha/year
Data Year: 2019 - 2021
Exceedance Ranges:
Arctic, alpine and subalpine scrub habitats [8.75] to [3.75] Kg N/ha/year
Dry heaths [8.75] to [-1.25] Kg N/ha/year
Northern wet heath: U? Callunadominated wet heath (upland) [8.75] to [-1.25] Kg N/ha/year
Northern wet heath: `L? Erica tetralixdominated wet heath (lowland) [8.75] to [-1.25] Kg N/ha/year
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Pollutant: Nitrogen Oxides
Critical Level: 30 µg NOx (as NO2) m-3
Concentration: 9.38 µg NOx (as NO2) m-3
Data Year: 2019 - 2021
Exceedance: -20.62 µg NOx (as NO2) m-3
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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: 1486.97 ppb hours
Data Year: 2007 - 2012
Exceedance: -3513.03 ppb hours
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Pollutant: Sulphur Dioxide
Critical Level: 20 µg m-3
Concentration: 0.61 µg m-3
Data Year: 2019 - 2021
Exceedance: -19.39 µg m-3
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Pollutant: Acid Deposition
Critical Load Class & Values:
Class: Dwarf shrub heath
CLmaxS: 0.33 CLminN: 0.642 CLmaxN: 0.972 (keq/ha/yr)
Deposition: 1.01 (N: 0.98 | S: 0.12) (keq/ha/yr)
Data Year: 2019 - 2021
Exceedance: