1 محیط زیست و منابع طبیعی:: استانداردهای ملی کیفیت هوای محیط
National Ambient Air Quality standard (NAAQS) 18 Quality standard (NAAQS, 2019) and subsequent damage cost will be evaluated for breached such as NAAQS standard on pollutant concentration as in Table 6, relative risk and baseline Table 6: National Ambient Air Quality Standards (NAAQS, 2019) Parameters NAAQS standard (pg/m3) Annual mean Daily mean PMio 60 100 NO
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