Almost 40% of the world’s population has been exposed to harmful levels of ground-level ozone so far this year, as extreme heat and air pollution combine to worsen air quality across much of the globe.

Scientists investigating how air pollution damages the heart and blood vessels have identified changes in the blood that could help explain the connection.

For decades, 60,000 miles has been a psychological milestone for used-car buyers. Once the numbers on the odometer climb beyond it, concerns about worn engines, ageing transmissions and expensive repairs often grow.

Drivers who leave their engines running while parked in Wales could face fines of up to £150 from oday (30th Ocober).

New research has found that large-scale weather patterns explain much of the year-to-year variation in northern India’s winter air pollution and may make seasonal forecasts of severe air pollution possible.

Globally proven continuous trace gas measurement platform now secures UK’s gold-standard certification for environmental monitoring equipment.