20.6.1.1.3 Step 2B: Define the Sensitivity of the Area 82.


The sensitivity of the area to dust soiling, human health and ecological receptors was determined using the criteria in Table A4 and Table A5 of Appendix 20.1. Figure 20.2 details the distance bands from the site boundary used in determining the sensitivity of the area. The sensitivity of the area is defined as:


Sensitivity of People to Dust Soiling 





Earthworks and Construction: There are 10-100 receptors within 50m of the site boundary. The sensitivity is therefore High; and


Trackout: There are greater than 100 receptors within 50m of site access routes. The sensitivity is therefore High.


Sensitivity of People to Health Effects of PM10 


Earthworks and Construction: The highest annual mean background PM10 concentration across the study area is less than 24µg.m-3, however there are more than 10 receptors within 20m of the boundary. The sensitivity is therefore high; and





Trackout: There are more than 10 receptors within 20m of the routes that construction vehicles will use to access the site. The sensitivity is therefore high.


Sensitivity of Ecological Receptors 


 83.


Earthworks and Construction: The sensitivity is considered to be high as the boundary is located within the Deben Estuary SSSI; and


Trackout: The sensitivity is considered to be high as the boundary is located within the Deben Estuary SSSI.


The sensitivity of the area to dust soiling, human health and ecological sites for each activity is summarised in Table 20.22.


Table 20.22 Sensitivity of the Area to Each Activity Potential Impact


Earthworks Dust Soiling


Human Health Ecological Sites


High High High


Sensitivity of the Surrounding Area Construction


High High High


High High High


Trackout


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 20 Air Quality Page 29


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