EN20 NOx, SOx and Other Significant Air Emission, by Type and Weight

Thermal and Diesel Generation / Calendar Year

2010

2010

2010

2010

Burrard Thermal Generating Station

Fort Nelson Generating Station

Prince Rupert Generating Station

Diesel Generation

Power Generated GWh

58

320

4

54.012401

MWh

57,723

320,322

3,819

54,012.401

PM t

1.34

2.60

0.09

15.903

kg/MWh

0.023

0.008

0.024

0.051

PM 10 t

1.33

2.60

0.09

12.722

kg/MWh

0.023

0.008

0.024

0.041

PM 2.5 t

1.31

2.60

0.09

12.286

kg/MWh

0.023

0.008

0.024

0.040

NOx t

4.49

134.40

12.84

854.482

kg/MWh

0.078

0.420

3.363

2.761

CO t

1.32

82.48

2.79

195.819

kg/MWh

0.023

0.257

0.732

0.633

SO2 t

1.09

4.60

0.09

14.402

kg/MWh

0.019

0.014

0.022

0.047

VOC t

0.30

2.89

0.07

22.841

kg/MWh

0.005

0.009

0.018

0.074

NH3 t

0.74

 

 

N/A

kg/MWh

0.013

 

 

 

Lead kg

0.17

1.15

1.08

N/A

mg/MWh

2.96

3.57

281.88

 

Manganese kg

0.13

0.01

0.14

N/A

mg/MWh

2.29

0.02

37.47

 

Arsenic kg

0.07

0.20

0.00

N/A

mg/MWh

1.18

0.63

1.28

 

Chromium kg

0.478

2.763

0.066

N/A

mg/MWh

8.27

8.63

17.40

 

Nickel kg

0.730

2.048

0.049

N/A

mg/MWh

12.65

6.39

12.89

 

Zinc kg

9.893

38.491

1.051

N/A

mg/MWh

171.39

120.16

275.11

 

Cadmium kg

0.375

0.067

0.002

N/A

mg/MWh

6.50

0.21

0.43

 

Vanadium kg

0.785

0.235

0.073

N/A

mg/MWh

13.59

0.73

19.15

 

Mercury kg

0.089

0.909

0.022

N/A

mg/MWh

1.54

2.84

5.72

 


BC Hydro is required to submit an annual report to the National Pollutant Release Inventory which tracks pollution in Canada, including those resulting from air emissions. Requirements for reporting include: Criteria Air Aontaminants which include Total Particulate Matter (TPM), Particulate Matter less than or equal to 10 Microns (PM10), Particulate Matter less than or equal to 2.5 Microns (PM2.5), Sulphur Oxides (SOx), Nitrogen Oxides (NOx), Volatile Organic Compounds (VOC), Carbon Monoxide (CO) and Ammonia (NH3); Heavy Metals (HMs): Lead (Pb), Cadmium (Cd), and Mercury (Hg); and Persistent Organic Pollutants (POPs): Dioxins and Furans (DF), Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[k]fluoranthene, Indeno[1,2,3-cd]pyrene, and Hexachlorobenzene (HCB). These compounds noted as N/A above are not part of our NPRI reporting for diesel generation. Emissions that do not exceed the NPRI thresholds are not reported.

For more information, visit Environment Canada – Air Pollutant Emissions website.

The results above are based on calendar year 2010 and include BC Hydro's two major thermal generating station and a number of diesel plants located in remote areas of the province. Prince Rupert Generating Station is a small plant which is used for back-up generation only; and our Keogh facility on northern Vancouver Island was decommission in February 2003.

BC Hydro produces most of its electricity through hydro generation (over 90 per cent).