1

Origin Renewable Energy- Energy from Waste (EfW) Plant at

Magnetic Park, Desborough

Appraisal of Air Quality Impacts Associated with Stack Emissions

Chris Haigh – Technical Director

2

Air Quality Regulations 2010 - Definitions

“…outdoor air in the troposphere, excluding workplaces where members of the public do not have regular access.”

“Compliance with the limit values directed at the protection of human health does not need to be assessed at the following locations:any location situated within areas where members of the public do not have access and there is no fixed habitation;on factory premises or at industrial locations to which all relevant provisions concerning health and safety at work apply;on the carriageway of roads and on the central reservation of roads except where there is normally pedestrian access to the central reservation.”

3

Environment Agency – AssessmentMethod

4

Impacts of Polluting Emissions

5

What information is needed for the modelling?

Stack Source Information source type (point, line, area) pollutant emission rate

Receptor Information residential areas shops/offices recreational facilities ecologically-designated sites

Local Topography OS maps, aerial photographs and site visit

Local Meteorological Information

6

Weather Data

0

0

3

1.5

6

3.1

10

5.1

16

8.2

(knots)

(m/s)

Wind speed

0° 10°20°

30°

40°

50°

60°

70°

80°

90°

100°

110°

120°

130°

140°

150°160°

170°180°190°200°

210°

220°

230°

240°

250°

260°

270°

280°

290°

300°

310°

320°

330°340°

350°

100

200

300

400

500

600

Five years of data from RAF Wittering

Other Local Stations

•Monks Wood•Moulton Park

•Church Lawton•Market Bosworth •Sutton Bonnington

7

Predicted Impacts - Nitrogen Dioxide (NO2)

Source Vs Objective

0.94

11.04 10.1 9.3

40

0

5

10

15

20

25

30

35

40

45

PC - EfW PEC Bkgrd -Netcen

Bkgrd - MktH'brough

AQO

Nit

rog

en

dio

xid

e c

on

cen

trati

on

(u

g m

-3)

8

Predicted Impacts – Energy from Waste (EfW)

NO2 concentration 0.4 – 0.6 g/m3

NO2 concentration 0.6-0.8 g/m3

Stack Location NO2 concentration 0.8 -1.0 g/m3

NO2 concentration 1.0-1.2 g/m3

9

Ultra Fine Particulate Matter – PM2.5

Particulate matter equal to or below 2.5 micrometers in aerodynamic diameter – 1/30th the width of a human hair

Manmade PM2.5 mainly from combustion sources

Health studies in USA have shown an association between ultra fine particulates and increased hospital admissions and even premature death

COMEAP indicates that 1 µg/m3 decrease in PM2.5 over a lifetime exposure of 80 years will gain an extra 1.5-3.5 days per individual

PM2.5 annual mean limit value/standard of 25 µg/m3 in the Air Quality Standards Regulations 2010 and Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe

PM2.5 annual mean value/standard of 20 µg/m3 by 2020 (to be reviewed by the European Commission in 2013)

10

Sources of Ultra fine Particulate Matter in the UK

Combustion in energy & transformation

Non-industrial combustion plants

Combustion in manufacturing

Production processes

Solvent use

Road transport

Other mobile sources & machinery

Waste treatment & disposal

Agriculture

Other sources & sinks

Total emission - 95,500 tonnes – 2005 - 83,210 tonnes – 2010

Combustion of all wastes - 500 tonnes – 2005(including small scale burning and vehicle fires)

11

Ultrafine Particulate Monitoring

PM10 November 2009

0

50

100

150

200

250

01

:00

14

:00

03

:00

16

:00

05

:00

18

:00

07

:00

20

:00

09

:00

22

:00

11

:00

24

:00

:00

13

:00

02

:00

15

:00

04

:00

17

:00

06

:00

19

:00

08

:00

21

:00

10

:00

23

:00

12

:00

01

:00

14

:00

03

:00

16

:00

05

:00

18

:00

07

:00

20

:00

09

:00

22

:00

11

:00

24

:00

:00

13

:00

02

:00

15

:00

04

:00

17

:00

Time

Me

as

ure

d C

on

ce

ntr

ati

on

Saturday 7 November

Thursday 5 November

12

Summary

Nitrogen Dioxide – NO2

Effects from the EfW on air quality in the area are considered to be negligible.

Magnetic Park EfW will contribute <3% of the air quality standard

Ultra fine Particulate Matter – PM2.5

Not possible to discern a level where there are no adverse effects

Annual mean concentration limit values and standards set an EU and UK level

Magnetic Park EfW will only contribute <0.1% of current limit value/standard

13

Pollutant Emission Rate

Components Concentration at EU limits (WID) - mg m-3 at reference

conditions

UK Average emissions as % of WID from currently operating plants

Typical emissions for an Energos plant - mg m-3 at reference conditions

(% of WID)

Dust 10 18.7% 0.2 (2.4%)

Hg 0.05 34.2% 0.00062 (1.2%)

Cd+Tl 0.05 1.0-3.4% 0.00005 (0.1%)

Sb 0.5 1.80% 0.0001 (0.1%)

As, Pb, Cr, Co, Cu, Mn, Ni, V, Sn

0.5 0.2 – 8.4% 0.00394 (0.8%)

CO 50 22.2% 5.1 (10.2%)

TOC 10 6.1% 0.2 (2%)

HF 1 5.3% 0.02 (2%)

HCl 10 48.9% 2.8 (28.1%)

SO2 50 27.2% 29.0 (58.1%)

NOX200 75.3% 62.9 (31%)

NH3 10 - 0.3 (3%)

Dioxin/Furans (ng m-3) 0.1 30.9% 0.0053 (5.3%)

NH3- - 5.1

14

Health Impacts

“The Health Protection Agency’s current position is that well run and regulated modern Municipal Waste Incinerators (MWIs) are not a significant risk to public health”