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The Invisible Killer on Our Streets

India Pollock investigates what life is like for families living on Wales's most polluted streets, and if anything is being done about this public health crisis.

Week In, Week Out investigates what life is like for families living on Wales's most polluted streets. An estimated 2,000 deaths are caused by air pollution in Wales each year - mostly from traffic on our roads. So are we facing up to what's being called an urgent public health crisis? India Pollock reports.

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30 minutes