Query by Location - Results

Habitat: Acid grassland

Grid Reference: NY159104

Grid Easting: 317500 to the 5km mid point (metres)

Grid Northing: 512500 to the 5km mid point (metres)

Grid Easting: 315500 to the 1km mid point (metres)

Grid Easting: 510500 to the 1km mid point (metres)

____________________________________________________________________________________

Pollutant: Ammonia

Critical Level: 1.0 - 3 µg m-3

Concentration: 0.46 µg m-3

Data Year: 2013 - 2015

Exceedance: [1.0] to [-2.54] µg m-3

____________________________________________________________________________________

Pollutant: N Deposition

Critical Load Range:
Non-mediterranean dry acid and neutral closed grassland: 10 - 15 Kg N/ha/year
Moist and wet oligotrophic grasslands: Molinia caerulea meadows: 15 - 25 Kg N/ha/year
Moist and wet oligotrophic grasslands: Heath (Juncus) meadows and humid (Nardus stricta) swards: 10 - 20 Kg N/ha/year
Alpine and subalpine grasslands: 5 - 10 Kg N/ha/year
Non-mediterranean dry acid and neutral closed grassland: 10 - 15 Kg N/ha/year
Moist and wet oligotrophic grasslands: Molinia caerulea meadows: 15 - 25 Kg N/ha/year
Moist and wet oligotrophic grasslands: Heath (Juncus) meadows and humid (Nardus stricta) swards: 10 - 20 Kg N/ha/year
Alpine and subalpine grasslands: 5 - 10 Kg N/ha/year

For applying the best indicative critical load values for use in impact assessments please visit the following page.

Deposition: 20.02 Kg N/ha/year (Find out about method changes to CBED model 2013)

Data Year: 2013 - 2015

Exceedance Ranges:
Non-mediterranean dry acid and neutral closed grassland [10.02] to [5.02] Kg N/ha/year
Moist and wet oligotrophic grasslands: Molinia caerulea meadows [5.02] to [-4.98] Kg N/ha/year
Moist and wet oligotrophic grasslands: Heath (Juncus) meadows and humid (Nardus stricta) swards [10.02] to [0.02] Kg N/ha/year
Alpine and subalpine grasslands [15.02] to [10.02] Kg N/ha/year
Non-mediterranean dry acid and neutral closed grassland [10.02] to [5.02] Kg N/ha/year
Moist and wet oligotrophic grasslands: Molinia caerulea meadows [5.02] to [-4.98] Kg N/ha/year
Moist and wet oligotrophic grasslands: Heath (Juncus) meadows and humid (Nardus stricta) swards [10.02] to [0.02] Kg N/ha/year
Alpine and subalpine grasslands [15.02] to [10.02] Kg N/ha/year

____________________________________________________________________________________

Pollutant: Nitrogen Oxides

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

Concentration: 4.75 µg NOx (as NO2) m-3

Data Year: 2013 - 2015

Exceedance: -25.25 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: 521.69 ppb hours

Data Year: 2007 - 2012

Exceedance: -4478.31 ppb hours

____________________________________________________________________________________

Pollutant: Sulphur Dioxide

Critical Level: 20 µg m-3

Concentration: 0.2 µg m-3

Data Year: 2013 - 2015

Exceedance: -19.8 µg m-3

____________________________________________________________________________________

Pollutant: Acid Deposition

Critical Load Class & Values:
Class: Acid grassland
CLmaxS: 0.48 CLminN: 0.223 CLmaxN: 0.703 (keq/ha/yr)

Deposition: 1.72 (N: 1.43 | S: 0.41) (keq/ha/yr) (Find out about method changes to CBED model 2013)

Data Year: 2013 - 2015

Exceedance: