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Cleaner roads, cleaner air: three Indian cities rethink road dust
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Cleaner roads, cleaner air: three Indian cities rethink road dust

With Delhi's air quality turning very poor, three Indian cities are showing why road cleaning needs to do more than make streets look spotless. Lucknow is using 97 electric mechanised sweepers and has paved nearly 560 km of roads to help keep dust from being stirred up again. Parwanoo has repaired dusty road surfaces and improved drainage, alongside other measures, as its annual average PM10 fell by about 41% between 2017-18 and 2023-24. Chandigarh is testing treated-water washing with mechanical cleaning, and here's the thing: tackling dust at its source could help make cleaner streets mean cleaner air.
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