The color scale indicates the number of pollutants exceeding the WHO standards at a monitoring site. No ozone data is available at Central, Causeway, and Mong Kok.
See how pollution is reported over time
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Incidents (from the map, listed in chronological order)
TITLE Location Date Rain hong kong (LN) Apr 9 2015 Hard to see the sun ... hong kong (LN) Mar 21 2015 Very hazy. Visibilit... hong kong (LN) Mar 21 2015 Very hazy. Visibilit... hong kong (LN) Mar 21 2015 Poor hong kong (LN) Mar 6 2015 Sf 8293 hong kong (LN) Mar 2 2015 Very dark, can't see hong kong (LN) Feb 17 2015 Really hazy today. F... hong kong (LN) Feb 16 2015 These Hong Kong app ... hong kong (LN) Feb 12 2015 Awful hong kong (LN) Feb 11 2015
Official & mainstream news
TITLE Source Date Evidence from glacier ice: Until it was... Science Daily Mar 7 2015 Hidden hazards found in 'green' products Science Daily Mar 6 2015 L.A. story: Cleaner air, healthier kids Science Daily Mar 5 2015 Carotid artery stenosis: Air pollution connected... Science Daily Mar 5 2015 New models yield clearer picture of emissions'... Science Daily Mar 5 2015 Solar cells to get growth boost, price cut Science Daily Mar 4 2015 Air pollution linked to slower cognitive... Science Daily Mar 4 2015 Water in smog may reveal pollution sources Science Daily Mar 3 2015 On-board school bus filtration system reduces... Science Daily Mar 2 2015 Himalayan ice shows chemicals ban is working Science Daily Feb 25 2015