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Hanoi calls for collective action to reduce air pollution
City dwellers had to suffer poor air quality for up to 110 days in a year
Báo Tuổi Trẻ English News Báo Tuổi Trẻ English News 160 ngày
New Study: Short-Term Exposure to Air Pollution Is Killing Over a Million People Each Year
Thailand pledges to take action to reduce air pollution
Thailand pledges to take action to reduce air pollution
Thailand pledges to take action to reduce air pollution