Hertfordshire and Bedfordshire

Use the tabs below to explore information about the current and historic air pollution levels in this local authority. You can select another local authority using the dropdown menu. 

Days in each index band for Hertfordshire and Bedfordshire

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Choose a date period below to view a summary of how many days each site had in each index band.

The number of days in each index band for the following date period is shown below: 08/12/2016 - 07/12/2017

Monitoring site Index 1
Low
Index 2
Low
Index 3
Low
Index 4
Moderate
Index 5
Moderate
Index 6
Moderate
Index 7
High
Index 8
High
Index 9
High
Index 10
Very High
Welwyn Hatfield (HB001) View pie chart 217 84 26 6 3 3 0 0 1 1
Hitchin Stevenage Road (HB002) View pie chart 186 131 40 3 0 0 0 0 0 0
Hitchin Stevenage Road Particulates (HB003) View pie chart 158 161 32 9 1 0 0 0 0 0
Watford Town Hall (HB004) View pie chart 188 107 18 4 1 0 1 0 0 1
Stevenage Lytton Way (HB005) View pie chart 243 90 24 3 3 0 0 1 1 0
London Luton Airport (HB006) View pie chart 176 138 17 1 0 0 0 0 0 0
Luton Dunstable Road East (HB007) View pie chart 147 185 25 2 2 1 1 0 0 0
Pie chart illustrating the number of days in each band for this monitoring site
Hertsmere Borehamwood Background (HB008) View pie chart 75 66 19 2 3 0 0 1 0 1
Hertsmere Borehamwood Roadside (HB009) View pie chart 53 90 20 4 0 2 0 0 0 1
Bedford Lurke Street (HB010) View pie chart 308 54 1 0 0 0 0 0 0 0
Bedford Prebend Street (HB011) View pie chart 320 45 0 0 0 0 0 0 0 0
East Herts Hertford Gascoyne Way (HB012) View pie chart 161 159 30 6 4 2 0 1 0 1
Dacorum Northchurch High Street (HB013) View pie chart 242 110 11 2 0 0 0 0 0 0
Borehamwood Bowling Club (HB014) View pie chart 149 44 5 0 0 0 0 0 0 0