How is the air quality in Shenzhen?

Shenzhen’s air quality is relatively good in the country. The Ministry of Environmental Protection released on the 19th the air quality status of 74 cities in March and the first quarter of 2013. These 74 cities are the first cities in my country to carry out PM2.5 monitoring. The results show that in March, the overall proportion of days that met the standard in 74 cities was 54.4%, and the proportion of days that exceeded the standard was 45.6%. According to the comprehensive urban air quality index evaluation, the air pollution in Tangshan, Shijiazhuang, Xi'an, Chengdu, Xingtai, Baoding, Xining, Handan, Langfang and Taiyuan is relatively serious. The deterioration of air quality in some cities this month is related to the impact of sand and dust weather; Haikou , Zhoushan, Lhasa, Fuzhou, Huizhou, Zhuhai, Lishui, Shenzhen, Xiamen and Zhangjiakou have better air quality. The relevant person in charge of the Ministry of Environmental Protection said that from January to March, the overall proportion of days meeting standards in 74 cities was 44.4%, and the proportion of days exceeding standards was 55.6%. The primary pollutants are PM2.5 and PM10, with the average exceeding rate of PM2.5 being 49.1% and the average exceeding rate of PM10 being 33.6%. According to the comprehensive urban air quality index evaluation, some cities such as Shijiazhuang, Xingtai, Baoding, Handan, Tangshan, Jinan, Xi'an, Hengshui, Langfang and Urumqi have relatively serious air pollution; Haikou, Lhasa, Zhoushan, Fuzhou, Huizhou, Xiamen, Shenzhen , Zhuhai, Jiangmen and Lishui have better air quality.