Air pollution

 

2 May 2016 - This updated database contains results of urban outdoor air pollution monitoring from almost 3000 cities in 103 countries
Air quality is represented by annual mean concentration of fine particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 microns).

The database aims to be representative for human exposure, and therefore primanty captures measurements from monitoring stations located in urban background, urban traffic, residential, commercial and mixed areas.

 

The Department for Transport has commissioned research on how existing or new technology can be used to detect DPF removal by measuring exhaust fumes. Photograph: Alamy

Government urged to crack down on rogue practice of garages removing compulsory diesel particulate filters from vehicles

More than a thousand diesel cars have been caught without an essential pollution filter that traps deadly particles, according to government figures. But experts warn the rogue practice of removing the filters, which contributes to air pollution-related deaths, could be far more widespread.

People are increasingly being warned about the dangers of diesel pollution, but how much are we actually exposed to? Tim Johns tried to find out.

Waiting for my train one day, standing on the concourse, it occurred to me that there seemed to be rather a lot of fumes coming from the idling diesel engines.

How much diesel pollution was I breathing in?

I decided to undertake an experiment for The Jeremy Vine Show on BBC Radio 2 to find out how much I was being exposed to on a daily basis, in different locations and on different modes of transport.

Humanity has witnessed unprecedented growth and prosperity in the past decades, with the size of the world economy more than tripling and population increasing by over 3 billion people since 1970. This growth, however, has been accompanied by environmental pollution and natural resource depletion. The current growth model and the mismanagement of natural assets could ultimately undermine human development.

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