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Monday, 24 August 2015

有没有你的家:各地危化品与居民区的致命距离

Tianjin Blasts Expose the Dangerous
Proximity of Toxic Chemicals in China

The warehouse in Tianjin that exploded on Aug. 12 was one of many buildings across China that store toxic chemicals near residential areas or major roads, in violation of safety regulations, according to a review of satellite imagery and public records.
Tianjin
Shijiazhuang
Weifang
CHINA
Luoyang
Wuhan
Shanghai
Anqing
Dongguan
Highways and schools all over China are near warehouses licensed to handle hazardous substances.
According to Chinese officials, the warehouse in Tianjin, a major port city, stored at least 700 tons of one common deadly chemical, sodium cyanide, used in mining to separate gold and silver from rock.
After the deadly explosions, residents of Tianjin have been gripped by fear and uncertainty over the presence of toxic chemicals in the city’s air and water, setting off a national debate about hidden safety hazards along the supply route for sodium cyanide.
Chinese regulations forbid facilities with hazardous chemicals to operate less than one kilometer (two-thirds of a mile) from public buildings and major roads.
The consequences of an accident at such a storage site can be disastrous. The blasts in Tianjin killed over 100 people, injured hundreds more and turned the surroundings into wasteland. Experts said it was possible that some of the sodium cyanide had combined with water to form a toxic vapor.
Thousands of dead fish washed up on a riverbank near the site of the explosions last week. White foam filled the streets during the first rain shower after the blasts. Residents and relatives of those killed have taken to the streets in protest, demanding to be told how a hazardous chemical storage site could be so close to their homes.
The sodium cyanide stored at the warehouse originated from a factory 200 miles west of Tianjin. Chinese news media reported a foul smell in the air near the factory, and residents said they had found white foam in the groundwater. Some complained of headaches.

Hebei Chengxin Company

Maker of sodium cyanide

Shijiazhuang, Hebei Province

Approx. 1 km
radius (0.6 miles)
Residential
area
Production
facility
Primary school
The company, Hebei Chengxin, is one of the largest makers of the toxic substance in Asia. Its sprawling facility is close to a primary school with up to 700 students and staff members. Company officials could not be reached for comment.
The plant’s apparent violation of distance rules reflects China’s difficulties in enforcing safety standards during a time of rapid industrialization. In May, the Ministry of Environmental Protection issued draft guidelines for improving environmental protection in industrial parks, noting that some had “expanded recklessly.” Such parks “create serious pollution and severe environmental hazards that are affecting social harmony and stability,” the guidelines warned.
On Friday, Greenpeace said it had identified warehouses for hazardous chemicals at four other major port cities: Shanghai, Guangzhou, Ningbo and Qingdao. All are close to residential areas.
The Times has found several other facilities across China that produce or store sodium cyanide and other hazardous chemicals and appear to violate safe-distance regulations, putting nearby residents at risk of toxic exposure.
Henan Yanshi Tianlong
Chemical Company
Maker of sodium cyanide
Luoyang, Henan Province
Transport
terminal
Production
site
Approx. 1 km
radius
Weifang Parasia Chemical Company
Maker of sodium cyanide
Weifang, Shandong Province
Production
site
Residential
area
Sodium cyanide was only one of the chemicals stored at the warehouse in Tianjin, owned by Rui Hai Logistics. But it is remarkably lethal: A quarter of a teaspoon, if ingested, will kill an adult in a few minutes.
explosion-wide.jpg
Ng Han Guan/Associated Press
Officials have not explained why the warehouse was allowed to operate just 2,000 feet from a high-rise apartment complex. Residents said they had no idea that the warehouse posed a risk.

Rui Hai International Logistics

Stores sodium cyanide

Tianjin

Approx. 1 km
radius (0.6 miles)
Donghai Road
train station
Site of explosion
Police station
Residential
buildings
Satellite images show two other hazardous-goods warehouses in Tianjin less than three miles from the blasts. The warehouses, managed by companies under the state-owned Sinochem Group, advertise that they can store hazardous chemicals. One is near a kindergarten; the other sits next to a major highway. Employees at both warehouses declined to comment.
Sinochem Tianjin Binhai
Logistics Company
Stores hazardous chemicals
Tianjin
Residential
area
Kindergarten
Storage site
Approx. 1 km
radius
Tianjin Port Sinochem Hazardous
Goods Logistics Company
Stores hazardous chemicals
Tianjin
Storage site
S11 Haibin
Expressway
The blasts in Tianjin have prompted officials to conduct surveys on sites across the country that store hazardous chemicals. During one such inspection in Wuhan last week, the local authorities found such a site just across the street from a residential compound.
Inspectors chastised managers at the company, Wuhan International Container, for violating basic safety standards, like failing to maintain an inventory and store chemicals separately, according to Chinese news media reports last week. On Thursday, the city of Wuhan revoked the company’s license to store explosive chemicals. The company did not return phone calls.
Shanghai BeiFang Logistics Company
Stores hazardous chemicals
Shanghai
Storage
site
Approx. 1 km
radius
Wuhan International
Container Company
Stores hazardous chemicals
Wuhan, Hubei Province
Storage site
Residential area
Another major producer of sodium cyanide, Anhui Shuguang, appears to have a subsidiary close to a residential area of Anqing in Anhui Province, and only a few hundred feet from the Yangtze River in central China. The Times found a kindergarten and another school within 1,000 meters of the factory. The company did not respond to questions sent by email, and a person who answered the phone there declined to comment.
Anqing New Shuguang
Fine Chemical Company
Maker of sodium cyanide
Anqing, Anhui Province
Kindergarten
Primary school
Production
site
430 feet
Yangtze River
Approx. 1 km
radius
Dongguan Rongshun
Chemical Storage Company
Licensed to store sodium cyanide
Dongguan, Guangdong Province
Storage site
Jin’aosha
village
On Thursday, safety inspectors also visited a storage site in Dongguan, in southern Guangdong Province. The facility is licensed to store sodium cyanide, according to a man who answered the phone and said he was the operating company's legal representative. The man, who gave only his surname, Lu, declined to say whether the site was currently storing the chemical, citing client confidentiality.
Mr. Lu said the company had passed the inspection. Asked about the warehouse’s proximity to the village of Jin’aosha, he said he was confident that the distance exceeded one kilometer. “We are definitely legal,” he said. “I have never done wrong to the Communist Party.”
Satellite images by Digital Globe and CNES/Astrium via Google Earth.

from  http://www.nytimes.com/interactive/2015/08/21/world/asia/tianjin-china-explosion-hazardous-chemical-sites.html