Emissions monitoring

Values for the daily emissions of each continually monitored parameter.

These graphs show emissions levels from our site.

The strict permit limits (the top line in each graph) have been set by the Environment Agency so that even if our emissions were right up to the limit all of the time there would be no impact on local people or the environment. During normal operations our emissions are well below the limit and although there have been a few minor breaches, these have been short-lived and would have no harmful impact.

Occasionally, we have reports of ‘black smoke’, but would like to reassure local residents there is nothing sinister coming from our chimney – just the usual water vapour. A trick of the light can sometimes make this appear black, but if we were emitting anything we shoudn’t it would soon show up on our continuous monitoring system. To get black smoke, particulate levels would have to be high. In fact, they have been extremely low since we began operating.

Line one emissions data for the past 90 days

Date Oxides of nitrogen (mg/M³) Sulphur dioxide (mg/M³) Carbon monoxide (mg/M³) Hydrogen chloride (mg/M³) VOCs (mg/M³) Particles (mg/M³)
15/07/2018
14/07/2018
13/07/2018
12/07/2018 182.70 44.10 1.40 2.88 0.60 3.90
11/07/2018 190.80 47.40 4.10 3.13 0.80 4.00
10/07/2018 188.90 40.30 2.50 3.71 0.80 4.10
09/07/2018 183.50 45.90 1.30 3.76 0.80 4.10
08/07/2018 179.90 44.10 1.90 4.95 0.90 4.10
07/07/2018 181.50 40.10 3.50 5.05 0.80 4.20
06/07/2018 178.60 40.60 5.60 4.89 0.80 4.20
05/07/2018 189.40 46.20 4.70 4.11 0.80 4.20
04/07/2018 184.70 46.20 1.60 3.35 0.80 4.10
03/07/2018 193.00 41.10 7.90 3.04 1.10 4.20
02/07/2018 183.80 42.70 2.40 3.02 0.80 4.30
01/07/2018 191.90 33.50 6.70 2.40 0.90 4.20
30/06/2018 193.50 40.60 1.90 3.00 0.80 3.80
29/06/2018 185.60 41.30 4.40 2.90 0.70 3.70
28/06/2018 180.00 41.00 1.20 3.31 0.80 3.90
27/06/2018 187.80 32.50 2.70 3.68 0.70 3.90
26/06/2018 181.50 41.20 3.30 3.14 0.80 4.00
25/06/2018 180.10 41.80 1.40 3.21 0.80 4.00
24/06/2018 186.80 47.10 1.60 3.90 0.90 4.00
23/06/2018 184.10 43.00 4.90 3.86 0.90 4.10
22/06/2018 183.40 39.30 3.00 5.00 0.70 3.90
21/06/2018 180.80 34.20 1.90 6.50 0.50 3.60
20/06/2018 182.40 13.30 5.10 5.32 0.30 3.50
19/06/2018 180.20 15.30 4.60 7.31 0.30 3.50
18/06/2018 171.30 10.80 3.20 6.11 0.30 3.60
17/06/2018 190.60 13.10 0.60 4.45 0.50 3.60
16/06/2018 187.00 32.60 1.40 4.39 0.70 3.90
15/06/2018 180.20 47.40 2.50 7.41 0.80 4.00
14/06/2018 183.10 41.50 2.50 6.21 0.80 4.10
13/06/2018 180.30 42.80 4.40 5.47 0.70 3.90
12/06/2018 180.70 41.70 2.60 4.37 0.70 3.80
11/06/2018 180.20 41.00 2.80 5.62 0.80 4.10
10/06/2018 181.90 39.70 1.70 6.92 0.80 4.00
09/06/2018 180.80 40.00 6.40 6.32 0.80 3.90
08/06/2018 184.90 41.30 2.20 7.20 0.70 3.80
07/06/2018 183.50 39.80 2.10 7.53 0.70 3.80
06/06/2018 178.80 37.20 2.10 6.73 0.70 3.80
05/06/2018 187.60 30.10 2.40 4.38 0.80 3.60
04/06/2018 184.90 39.10 3.40 5.65 0.70 3.60
03/06/2018 183.90 33.80 1.70 5.39 0.80 3.70
02/06/2018 185.50 41.90 1.90 7.39 0.70 3.60
01/06/2018 183.40 17.60 2.00 8.29 0.20 3.20
31/05/2018 183.30 11.70 3.50 6.57 0.20 3.40
30/05/2018 193.90 14.70 3.30 4.61 0.50 3.30
29/05/2018 193.40 30.20 3.00 4.24 0.80 3.30
28/05/2018 180.10 25.20 3.70 6.02 0.40 3.50
27/05/2018 180.00 15.80 3.80 5.27 0.40 3.40
26/05/2018 180.20 21.00 3.30 5.67 0.30 3.00
25/05/2018 179.70 23.70 4.50 7.26 0.40 2.90
24/05/2018 185.80 12.90 2.90 5.63 0.30 2.70
23/05/2018 182.10 7.30 2.90 4.61 0.20 2.40
22/05/2018 183.10 9.90 2.50 4.20 0.20 2.40
21/05/2018 179.90 14.00 2.30 4.74 0.30 2.50
20/05/2018 180.00 13.90 2.00 3.97 0.30 2.60
19/05/2018 179.90 12.20 1.50 4.18 0.30 2.50
18/05/2018 181.60 12.80 1.80 3.60 0.20 2.30
17/05/2018 179.80 15.90 3.90 4.64 0.40 2.20
16/05/2018 192.20 11.20 2.20 3.21 0.20 2.50
15/05/2018 182.70 19.50 2.40 3.24 0.20 2.30
14/05/2018 190.90 12.00 5.20 2.91 0.30 2.50
13/05/2018 180.70 16.90 2.80 2.26 0.30 2.90
12/05/2018 179.90 17.70 3.30 3.12 0.20 4.60
11/05/2018 179.34 32.52 9.89 2.18 0.26 5.95
10/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
09/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
08/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
07/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
06/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
05/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
04/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
03/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
02/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
01/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
30/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
29/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
28/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
27/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
26/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
25/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
24/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
23/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
22/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
21/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
20/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
19/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
18/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
17/04/2018 0.0 0.0 0.0 0.0 0.0 0.0

Line two emissions data for the past 90 days

Date Oxides of nitrogen (mg/M³) Sulphur dioxide (mg/M³) Carbon monoxide (mg/M³) Hydrogen chloride (mg/M³) VOCs (mg/M³) Particles (mg/M³)
15/07/2018
14/07/2018
13/07/2018
12/07/2018 180.10 19.00 0.30 6.78 0.30 0.20
11/07/2018 182.50 17.60 0.40 7.48 0.20 0.20
10/07/2018 179.50 14.80 0.20 7.60 0.20 0.20
09/07/2018 180.10 16.80 0.80 8.48 0.30 0.20
08/07/2018 180.00 15.30 0.0 7.13 0.30 0.20
07/07/2018 179.90 9.00 2.20 6.86 0.30 0.20
06/07/2018 179.50 11.30 0.80 7.69 0.20 0.20
05/07/2018 181.60 13.20 2.90 6.68 0.30 0.20
04/07/2018 182.40 15.40 0.10 8.90 0.20 0.20
03/07/2018 178.90 11.10 3.20 7.72 0.20 0.20
02/07/2018 185.50 16.60 0.20 7.99 0.30 0.20
01/07/2018 180.50 10.30 2.70 6.37 0.30 0.30
30/06/2018 182.90 7.30 0.30 4.86 0.20 0.20
29/06/2018 179.60 11.30 0.70 4.32 0.10 0.20
28/06/2018 180.00 14.00 0.70 6.60 0.10 0.20
27/06/2018 180.00 11.80 0.80 7.37 0.40 0.30
26/06/2018 185.10 13.00 0.20 7.61 0.50 0.30
25/06/2018 181.20 18.50 1.20 8.87 0.40 0.30
24/06/2018 179.90 10.90 0.30 6.35 0.40 0.30
23/06/2018 181.20 14.00 0.90 6.31 0.40 0.30
22/06/2018 180.00 15.00 0.50 7.89 0.30 0.30
21/06/2018 179.70 10.80 0.10 5.78 0.30 0.30
20/06/2018 180.00 10.30 1.90 5.80 0.30 0.30
19/06/2018 179.50 12.00 1.80 7.43 0.30 0.30
18/06/2018 179.60 11.30 0.10 7.02 0.40 0.30
17/06/2018 180.30 13.40 0.70 7.22 0.50 0.20
16/06/2018 179.60 15.00 0.30 7.84 0.40 0.30
15/06/2018 180.20 12.90 0.50 7.41 0.30 0.30
14/06/2018 179.90 13.40 0.30 8.34 0.30 0.30
13/06/2018 180.90 13.00 0.40 7.56 0.30 1.10
12/06/2018 180.10 12.20 1.80 5.75 0.30 2.20
11/06/2018 179.80 15.60 0.70 7.67 0.30 2.20
10/06/2018 180.10 10.90 0.20 7.72 0.40 2.20
09/06/2018 181.50 18.50 0.30 8.03 0.40 2.20
08/06/2018 179.90 11.60 0.30 6.38 0.30 2.20
07/06/2018 179.90 6.10 0.40 5.81 0.30 2.20
06/06/2018 180.10 7.20 0.20 5.39 0.30 2.20
05/06/2018 180.00 9.40 0.20 7.19 0.30 2.10
04/06/2018 180.00 15.10 0.20 8.05 0.30 2.20
03/06/2018 182.90 9.60 1.20 6.75 0.40 2.20
02/06/2018 182.70 14.60 0.30 7.69 0.30 2.20
01/06/2018 181.70 13.00 4.30 7.50 0.30 2.20
31/05/2018 184.30 7.80 0.40 6.09 0.30 2.20
30/05/2018 180.00 9.50 1.90 5.53 0.30 2.20
29/05/2018 180.00 14.80 0.50 6.71 0.30 2.20
28/05/2018 180.00 25.50 1.70 7.08 0.40 2.20
27/05/2018 179.90 33.10 2.10 7.82 0.50 2.20
26/05/2018 181.20 19.90 2.40 5.70 0.40 2.20
25/05/2018 161.60 10.60 15.70 5.39 1.40 2.50
24/05/2018 179.80 18.20 2.60 6.21 0.40 2.20
23/05/2018 180.10 20.20 5.20 6.57 0.40 2.20
22/05/2018 180.10 15.70 3.40 4.72 0.40 2.20
21/05/2018 179.90 26.70 3.60 6.42 0.50 2.30
20/05/2018 180.00 26.30 3.10 6.21 0.50 2.20
19/05/2018 191.00 23.90 2.70 5.92 0.50 2.20
18/05/2018 180.40 21.30 2.90 4.91 0.40 2.20
17/05/2018 180.70 17.50 2.40 3.76 0.20 2.60
16/05/2018 181.60 13.90 2.40 4.15 0.40 2.20
15/05/2018 187.70 11.20 2.60 3.00 0.50 2.20
14/05/2018 177.90 9.70 2.90 2.62 0.40 2.20
13/05/2018 193.60 19.30 2.60 3.13 0.50 2.30
12/05/2018 196.20 37.30 3.30 4.12 0.40 2.20
11/05/2018 184.30 37.00 3.80 4.18 0.70 2.30
10/05/2018 165.80 45.40 2.60 5.36 0.50 2.30
09/05/2018 168.00 33.10 2.00 5.96 0.40 2.20
08/05/2018 186.30 12.60 4.80 5.31 0.30 2.20
07/05/2018 212.80 21.20 2.40 5.71 0.70 2.40
06/05/2018 175.40 17.40 3.80 1.92 0.70 2.40
05/05/2018 179.80 17.70 32.00 3.02 0.80 2.40
04/05/2018 192.31 17.61 12.09 2.47 0.54 2.54
03/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
02/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
01/05/2018 0.0 0.0 0.0 0.0 0.0 0.0
30/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
29/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
28/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
27/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
26/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
25/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
24/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
23/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
22/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
21/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
20/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
19/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
18/04/2018 0.0 0.0 0.0 0.0 0.0 0.0
17/04/2018 0.0 0.0 0.0 0.0 0.0 0.0

License limits

Oxides of nitrogen (mg/M³) Sulphur dioxide (mg/M³) Carbon monoxide (mg/M³) Hydrogen chloride (mg/M³) VOCs (mg/M³) Particles (mg/M³)
200.00 50.00 50.00 10.00 10.00 10.00

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