Query by Location - Results

Habitat: Dwarf Shrub Heath

Grid Reference: NG945498

Grid Easting: 192500 to the 5km mid point (metres)

Grid Northing: 847500 to the 5km mid point (metres)

Grid Easting: 194500 to the 1km mid point (metres)

Grid Easting: 849500 to the 1km mid point (metres)

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Pollutant: Ammonia

Critical Level: 1.0 - 3 µg m-3

Concentration: 0.06 µg m-3

Data Year: 2013 - 2015

Exceedance: [1.0] to [-2.94] µg m-3

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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: 7 Kg N/ha/year (Find out about method changes to CBED model 2013)

Data Year: 2013 - 2015

Exceedance Ranges:
Dry heaths [-3] to [-13] Kg N/ha/year
Northern wet heath: Calluna-dominated wet heath (upland moorland) [-3] to [-13] Kg N/ha/year
Northern wet heath: Erica tetralix dominated wet heath [-3] to [-13] Kg N/ha/year

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Pollutant: Nitrogen Oxides

Critical Level: 30 µg NOx (as NO2) m-3

Concentration: 1.94 µg NOx (as NO2) m-3

Data Year: 2013 - 2015

Exceedance: -28.06 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: 768.37 ppb hours

Data Year: 2007 - 2012

Exceedance: -4231.63 ppb hours

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Pollutant: Sulphur Dioxide

Critical Level: 20 µg m-3

Concentration: 0.09 µg m-3

Data Year: 2013 - 2015

Exceedance: -19.91 µg m-3

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Pollutant: Acid Deposition

Critical Load Class & Values:
Class: Dwarf shrub heath
CLmaxS: 0.45 CLminN: 0.642 CLmaxN: 1.092 (keq/ha/yr)

Deposition: 0.62 (N: 0.5 | S: 0.23) (keq/ha/yr) (Find out about method changes to CBED model 2013)

Data Year: 2013 - 2015

Exceedance: