Query by Location - Results

Habitat: Dwarf Shrub Heath

Grid Reference: NG945498

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

Grid Northing: 849500 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: 2019 - 2021

Exceedance: [-0.84] to [-2.84] 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: 8.23 Kg N/ha/year

Data Year: 2019 - 2021

Exceedance Ranges:
Arctic, alpine and subalpine scrub habitats [3.23] to [-1.77] Kg N/ha/year
Dry heaths [3.23] to [-6.77] Kg N/ha/year
Northern wet heath: U? Callunadominated wet heath (upland) [3.23] to [-6.77] Kg N/ha/year
Northern wet heath: `L? Erica tetralixdominated wet heath (lowland) [3.23] to [-6.77] Kg N/ha/year

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Pollutant: Nitrogen Oxides

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

Concentration: 1.13 µg NOx (as NO2) m-3

Data Year: 2019 - 2021

Exceedance: -28.87 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: 0.25 µg m-3

Data Year: 2019 - 2021

Exceedance: -19.75 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: 0.53 (N: 0.59 | S: 0.17) (keq/ha/yr)

Data Year: 2019 - 2021

Exceedance: