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: 21/11/2018 - 20/11/2019

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 262 56 25 7 1 1 0 0 0 0
Hitchin Stevenage Road (HB002) View pie chart 135 193 34 1 0 0 0 0 0 0
Hitchin Stevenage Road Particulates (HB003) View pie chart 206 121 32 3 2 1 0 0 0 0
Watford Town Hall (HB004) View pie chart 225 113 22 5 0 0 0 0 0 0
London Luton Airport (HB006) View pie chart 199 114 15 1 0 0 0 0 0 0
Luton Dunstable Road East (HB007) View pie chart 160 168 27 3 5 1 0 0 0 0
Hertsmere Borehamwood Roadside (HB009) View pie chart 212 118 22 12 0 1 0 0 0 0
Bedford Lurke Street (HB010) View pie chart 264 39 0 0 0 0 0 0 0 0
Bedford Prebend Street (HB011) View pie chart 307 58 0 0 0 0 0 0 0 0
East Herts Hertford Gascoyne Way (HB012) View pie chart 229 118 17 0 1 0 0 0 0 0
Dacorum Northchurch High Street (HB013) View pie chart 224 107 24 5 0 1 0 0 0 4
Hertsmere Borehamwood Bowling Club (HB014) View pie chart 237 66 20 5 1 0 0 0 0 0
Stevenage St Georges Way (HB015) View pie chart 275 63 17 4 2 0 1 0 0 0
London Luton Airport FutureLuToN (LA001) View pie chart 0 67 37 0 0 3 1 0 0 0