Results from a new pollution-detecting technology, which has been installed in Leicester city, could help with environmental decisions in the future, scientists said.
The technology uses a "heatmap" to show pollution levels in the area, showing levels of nitrogen dioxide (NO2) across the city.
As part of a project "developing solutions to the national problem" of improving overall air quality, scientists have also used a device to map air quality around the city.
Monitoring visible light, it measures how much is lost at specific wavelengths absorbed by nitrogen dioxide.
The device was previously used as part of the CityScan project, to measure pollution in Leicester, Bologna, and London during the Olympics.
More top news
John Stapleton hosts lively political debate from Conservative MP Mark Spencer, Labour MP Gisela Stewart, & Liberal Democrat John Hemming.
In 1976 civil wedding ceremonies outnumbered religious weddings for the first time. In 2012, only 30 per cent of weddings were religious.
The most accurate statistics on marriage came out in 2012. Here's the highlights of what the Office for National Statistics found.