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PRC: Environmental data

Air quality data

The China Environment and Development Information website provides air quality data on a daily basis.

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Air quality standards
Emission contribution from different vehicles in Guangzhou

Air Quality Standards (mg/m3)
note: numbers in parenthesis are previous standards

		Class I	Class II	Class III	US
SO₂	annual ave.	0.02	0.06	0.1	0.08
	daily ave.	0.05	0.15	0.25	0.365
	1 hr	0.15	0.5	0.7
TSP	annual ave.	0.08	0.2	0.3
TSP	daily ave.	0.12	0.3	0.5
PM10	annual ave.	0.04	0.1	0.15	0.05
PM10	daily ave.	0.05	0.15	0.25	0.15
PM2.5	annual ave.				0.15
PM2.5	daily ave.				0.65
NO₂	annual ave.	0.04	0.08(.04)	0.08	0.1
	daily ave.	0.08	0.12(.08)	0.12
	1 hr	0.12	0.24(.24)	0.24
CO	daily ave.	4	4	4
	8 hr				10
	1 hr	10	10	10	40
O₃	1 hr	0.12	0.16	0.2	0.235
O₃	8 hr				0.157

Source: M. Walsh, Motor Vehicle Pollution Control in the Asia Pacific Region

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Emission Contribution from Different Vehicles in Guangzhou

Item	Taxi	LDV	Bus	HDV	MC
CO %	28	37	10	6	19
HC %	24	36	13	8	19
NOx %	20	41	22	14	3

Source: Zhang Xiaogang, "Pollution from Motorcycles and
Control Measures in Guangzhou, PRC"

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Related documents

Benchmarking Report on Beijing
APMA, "Benchmarking Urban Air Quality Management and Practice in Major and Mega Cities in Asia - Stage 1" [PDF]
Benchmarking Report on Chongqing
APMA, "Benchmarking Urban Air Quality Management and Practice in Major and Mega Cities in Asia - Stage 1" [PDF]
Ambient Air Quality Monitoring in the PRC
Wan Bentai, BAQ 2002 [PDF]
Air Quality Monitoring in Beijing, PRC
Yu Tong, BAQ 2002 [PDF]
Ambient Air Quality Monitoring in Guangzhou
Zhang G X, BAQ 2002 [PDF]
Retrospection and Perspective on Shanghai Air Pollution Control Management
Zhang Quan, BAQ 2002 [PDF] http://www.cse.polyu.edu.hk/~activi/BAQ2002/BAQ2002_files/Proceedings/CityFocus/cf-2Quan_Z.ppt
PRC's Governing System And Its Impact on Environmental Policy
from China Environment Series [PDF]
Present and Future Pollution from Urban Transport in PRC
from China Environment Series [PDF]

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