Air Pollution in Teignbridge for Sun 22 Oct 2017:

LOW
MODERATE
HIGH
VERY HIGH

The overall air pollution in Teignbridge: value 2 out of 10 (1 = lowest, 10 = highest)D |
 

Frequently asked questions

What is the air pollution index?

Studies into the health effects of air pollution have concluded

 

 

Air pollution can cause short-term health effects to sensitive individuals for example, people who suffer from breathing difficulties may notice an effect from short term exposure to sulphur dioxide - hence why there is a 15 minute standard for sulphur dioxide.

 

The index banded data presented within the site has been determined after reference to the data given in the table below. The overall air pollution index for Bristol or an individual site is calculated from the highest concentration of the five pollutants included within the banding system. All data presented within these pages is shown as either micro grams per cubic meter of air (µgm-3) or as milli gram per cubic meter of air (mgm-3) in the case of carbon monoxide.

 

Banding
Index
Health Effects
LOW
1, 2 or 3
Effects are unlikely to be noticed even by individuals who know they are sensitive to air pollutants
MODERATE
4, 5, or 6
Mild effects, unlikely to require action, may be noticed amongst sensitive individuals.
HIGH
7, 8 or 9
Significant effects may be noticed by sensitive individuals and action to avoid or reduce these effects may be needed (e.g. reducing exposure by spending less time in polluted areas outdoors). Asthmatics will find that their 'reliever' inhaler is likely to reverse the effects on the lung.
VERY HIGH
10
The effects on sensitive individuals described for 'High' levels of pollution may worsen.

 



Boundaries Between Index Points for Each Pollutant


Band
Index
Ozone
8 hourly or hourly mean*
Nitrogen Dioxide
hourly mean
Sulphur Dioxide
15 minute mean
Carbon Monoxide
8 hourly mean
PM10 Particles
24 hour mean
 
 
µgm -3
ppb
µgm -3
ppb
µgm -3
mgm-3
mgm -3
ppb
µgm -3
LOW
1
0-32
0-16
0-95
0-49
0-88
0-32
0-3.8
0.0-3.2
0-16
LOW
2
33-66
17-32
96-190
50-99
89-176
33-66
3.9-7.6
3.3-6.6
17-32
LOW
3
67-99
33-49
191-286
100-149
177-265
67-99
7.7-11.5
6.7-9.9
33-49
MODERATE
4
100-126
50-62
287-381
150-199
266-354
100-132
11.6-13.4
10.0-11.5
50-57
MODERATE
5
127-152
63-76
382-476
200-249
355-442
133-166
13.5-15.4
11.6-13.2
58-66
MODERATE
6
153-179
77-89
478-572
250-299
443-531
167-199
15.5-17.3
13.3-14.9
67-74
HIGH
7
180-239
90-119
573-635
300-332
532-708
200-266
17.4-19.2
15.0-16.5
75-82
HIGH
8<
240-299
120-149
363-700
333-366
709-886
267-332
19.3-21.2
16.6-18.2
83-91
HIGH
9
300-359
150-179
701-763
367-399
887-1063
333-399
21.3-23.1
18.3-19.9
92-99
VERY HIGH
10
360
or more
180
or more
764
or more
400
or more
1064
or more
400
or more
23.2
or more
20
or more
100
or more

* For ozone, the maximum of the 8 hourly and hourly mean is used to calculate the index value.

See also:
Please click on a question below to see the answer on the left ...
Pollution glossary
2
Benzene (C6H6)
5
Ozone (O3)
6
PM10
8
Solar radiation
10
Toluene
11
Xylene