Slightly higher PM2.5 density increased crown mortality by 8%: Harvard-Lifehacker study JAPAN

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1. Slightly higher PM2.5 density increased crown mortality by 8%: results from Harvard Lifehacker research JAPAN
2. India’s urban blockade improves air pollution “I saw the Himalayas” Best condition in 20 years (Sankei Shimbun) Yahoo! News
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