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

Switch to AURN data

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: 11/11/2016 - 10/11/2017

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 202 86 31 6 5 4 0 0 1 1
Hitchin Stevenage Road (HB002) View pie chart 87 218 49 5 0 0 0 0 0 0
Hitchin Stevenage Road Particulates (HB003) View pie chart 148 167 34 10 2 0 0 0 0 0
Pie chart illustrating the number of days in each band for this monitoring site
Watford Town Hall (HB004) View pie chart 174 116 23 4 1 0 1 0 0 1
Stevenage Lytton Way (HB005) View pie chart 231 96 27 6 3 0 0 1 1 0
London Luton Airport (HB006) View pie chart 167 146 17 1 0 0 0 0 0 0
Luton Dunstable Road East (HB007) View pie chart 140 185 29 5 2 1 1 0 0 0
Hertsmere Borehamwood Background (HB008) View pie chart 90 75 20 4 3 0 0 1 0 1
Hertsmere Borehamwood Roadside (HB009) View pie chart 71 92 26 7 1 2 0 0 0 1
Bedford Lurke Street (HB010) View pie chart 289 74 0 0 0 0 0 0 0 0
Bedford Prebend Street (HB011) View pie chart 301 59 0 0 0 0 0 0 0 0
East Herts Hertford Gascoyne Way (HB012) View pie chart 149 167 32 7 4 3 0 1 0 1
Dacorum Northchurch High Street (HB013) View pie chart 231 119 13 2 0 0 0 0 0 0
Borehamwood Bowling Club (HB014) View pie chart 126 40 5 0 0 0 0 0 0 0