Commute earlier and pray for rain: what to do when there's a pollution warning

From eating vegetables to walking one street back from main roads, experts share their tips on how to protect yourself when there’s a peak pollution alertIn the UK, the department for environment, food and rural affairs issues daily alerts measuring air pollution levels. But when it comes to tips on how to respond, Defra confines itself to the slightly gnomic “reduce activity”. So we asked a team of air pollution experts on the best ways to protect yourself when there’s a