'Refinery dust' reveals clues about local polluters

Cloaked in the clouds of emissions and exhaust that hang over the city are clues that lead back to the polluting culprits, and a research team led by the University of Houston is hot on their trails.

Air pollution kills 1,200 children a year: EU agency

Air pollution still causes more than 1,200 premature deaths a year in under 18's across Europe and increases the risk of chronic disease later in life, the EU environmental agency said Monday.

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