Related News
Home » Metro » Environment
Shanghai adopts new air quality standard next week
By Cai Wenjun |
November 6, 2012, Tuesday
|
Online Edition
Online Edition
Under a new national standard for air quality monitoring, Shanghai will rate local air quality based on six indicators instead of three starting from November 16, officials from the Shanghai Environment Monitoring Center said today.
The center's website will issue daily and hourly readings of PM10, sulfur dioxide, carbon dioxide, PM2.5, ozone and carbon monoxide. The six pollution indexes will be used to evaluate air quality and present a better picture of air pollution across the country.
Air quality will be indicated by six levels from excellent to severe pollution. Each level has a different color.
Currently, Shanghai rates its air quality only according to readings of PM10, sulfur dioxide and carbon dioxide.
Lin Chenyuan, a worker at the center, said the number of days with excellent and good air quality may drop by 30 percentage points on an annual basis in the new system.
"Of the three new indicators, PM2.5 draws the biggest public concern as it can affect air quality and visibility and make people doubt about the air quality forecast," Lin said.
PM2.5 is a measure of airborne pollutants smaller than 2.5 microns in diameter, which are the main cause of urban smog and haze and are harmful to human health.
The center's website will issue daily and hourly readings of PM10, sulfur dioxide, carbon dioxide, PM2.5, ozone and carbon monoxide. The six pollution indexes will be used to evaluate air quality and present a better picture of air pollution across the country.
Air quality will be indicated by six levels from excellent to severe pollution. Each level has a different color.
Currently, Shanghai rates its air quality only according to readings of PM10, sulfur dioxide and carbon dioxide.
Lin Chenyuan, a worker at the center, said the number of days with excellent and good air quality may drop by 30 percentage points on an annual basis in the new system.
"Of the three new indicators, PM2.5 draws the biggest public concern as it can affect air quality and visibility and make people doubt about the air quality forecast," Lin said.
PM2.5 is a measure of airborne pollutants smaller than 2.5 microns in diameter, which are the main cause of urban smog and haze and are harmful to human health.
- About Us
- |
- Terms of Use
- |
-
RSS - |
- Privacy Policy
- |
- Contact Us
- |
- Shanghai Call Center: 962288
- |
- Tip-off hotline: 52920043
- 沪ICP证：沪ICP备05050403号-1
- |
- 互联网新闻信息服务许可证：31120180004
- |
- 网络视听许可证：0909346
- |
- 广播电视节目制作许可证：沪字第354号
- |
- 增值电信业务经营许可证：沪B2-20120012
Copyright © 1999- Shanghai Daily. All rights reserved.Preferably viewed with Internet Explorer 8 or newer browsers.
