Query by Location - Results

Habitat: Dwarf Shrub Heath

Grid Reference: NN445068

Grid Easting: 242500 to the 5km mid point (metres)

Grid Northing: 707500 to the 5km mid point (metres)

Grid Easting: 244500 to the 1km mid point (metres)

Grid Easting: 706500 to the 1km mid point (metres)

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Pollutant: Ammonia

Critical Level: 1.0 - 3 µg m-3

Concentration: 0.16 µg m-3

Data Year: 2013 - 2015

Exceedance: [1.0] to [-2.84] 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: 19.46 Kg N/ha/year (Find out about method changes to CBED model 2013)

Data Year: 2013 - 2015

Exceedance Ranges:
Dry heaths [9.46] to [-0.54] Kg N/ha/year
Northern wet heath: Calluna-dominated wet heath (upland moorland) [9.46] to [-0.54] Kg N/ha/year
Northern wet heath: Erica tetralix dominated wet heath [9.46] to [-0.54] Kg N/ha/year

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Pollutant: Nitrogen Oxides

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

Concentration: 3.25 µg NOx (as NO2) m-3

Data Year: 2013 - 2015

Exceedance: -26.75 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: 506.37 ppb hours

Data Year: 2007 - 2012

Exceedance: -4493.63 ppb hours

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Pollutant: Sulphur Dioxide

Critical Level: 20 µg m-3

Concentration: 0.12 µg m-3

Data Year: 2013 - 2015

Exceedance: -19.88 µg m-3

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Pollutant: Acid Deposition

Critical Load Class & Values:
Class: Dwarf shrub heath
CLmaxS: 0.44 CLminN: 0.714 CLmaxN: 1.154 (keq/ha/yr)

Deposition: 1.69 (N: 1.39 | S: 0.4) (keq/ha/yr) (Find out about method changes to CBED model 2013)

Data Year: 2013 - 2015

Exceedance: