بدائل البحث:
per decrease » _ decrease (توسيع البحث)
11 decrease » _ decrease (توسيع البحث)
nn decrease » _ decrease (توسيع البحث)
10 11 » 10 12 (توسيع البحث)
per decrease » _ decrease (توسيع البحث)
11 decrease » _ decrease (توسيع البحث)
nn decrease » _ decrease (توسيع البحث)
10 11 » 10 12 (توسيع البحث)
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Global, regional, and national burden of household air pollution, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021
منشور في 2025"…FindingsIn 2021, 2·67 billion (95% uncertainty interval [UI] 2·63–2·71) people, 33·8% (95% UI 33·2–34·3) of the global population, were exposed to HAP from all sources at a mean concentration of 84·2 μg/m3. Although these figures show a notable reduction in the percentage of the global population exposed in 1990 (56·7%, 56·4–57·1), in absolute terms, there has been only a decline of 0·35 billion (10%) from the 3·02 billion people exposed to HAP in 1990. …"
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Impact of SARS-CoV-2 on Ambient Air Quality in Northwest China (NWC)
منشور في 2021"…The PM2.5 failed to comply in SN and XJ; PM10 failed to comply in SN, XJ, and NX with CAAQS Grade II standards (35 µg/m3, 70 µg/m3, annual mean). …"
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