Dongguan, Guangdong chemical was dumped into the sewer

Core tips

At 9:00 a.m. yesterday morning, traffic flowed across the crossroads of the Jinghu Garden Gate on the Fourth Ring Road. People in the past did not scurry or hurried across the street wearing masks. Several security guards took the road to pass the emergency to the past citizens. In the direction of Dalingshan, fire engines were on alert. All this is not an exercise. In Dongtai Garden to Xibian Road, Changtai Road, Nancheng, an unpredictable and irritating gas is diffused in the air.

Yesterday afternoon, investigators in the relevant departments discovered that the weeds in the auxiliary road greenery near Jinghu Bay Restaurant had burnt and withered, and the surrounding irritating odor concentration was relatively high. There were traces of chemicals dumped and the source of odor was initially determined. The municipal environmental protection monitoring station quickly monitored the residual liquid and contaminated soil around the odor source, and preliminarily concluded that it was organic gas containing chlorine, including toxic and harmful gases such as trichloroethylene and dichloroethane, belonging to moderately toxic substances. Need to be further tested and confirmed.

As of press release, the incident did not find any casualties. But whoever dumps the chemicals is now involved in the investigation.

9:00

Public information:

Stimulating gas

"Invasion" Fourth Ring Road

At about 9:00 am yesterday, the newspaper’s hotline received a report from the public that there was an unexplained gas crossing at the crossroads of the Jinghu Garden Gate on the Fourth Ring Road. Because of the strong smell, people in the past felt uncomfortable.

Citizen Li said that he crossed the street from Jinghu Chunxiao towards Yefeng City at about 9:15. At the intersection of the traffic light, he obviously felt an irritating gas intruding into the eyes and nose, and then he felt tears and breathing difficulties. There was a feeling of suffocation, so I hurriedly fled the intersection. After leaving several hundred meters, the body's response gradually stabilized. "I don't know what the gas is like so much. I see people in the past who don't stop shed tears. When someone is picked up, they are crossing the road with their noses," he said.

Citizen Xie said that he smelled pungent at the entrance to the South Gate of Dongtai Garden. He felt uncomfortable nose and irritated eyes when he was breathing for a long time. Around 9:30, he saw police and fire engines rushed to the scene to investigate.

9:30

The reporter witnessed:

Tears

Skin burning

About 9:30 am yesterday, the reporter rushed to the scene. The security guards wearing protective masks at the crossroads drove away the passing citizens. At about 10:00 am, the police began to block the crossroads and prohibited the vehicles from heading to Dalingshan.

After the reporter arrived at the scene, a pungent odor was drilled into the nose. The reporter held his breath and slowly inhaled. He walked across the road from the intersection of the Fourth Ring Road traffic light with a shopping mall, and felt more odor. After the gas invades the eyes, the eye can not stand to stimulate tears, the nose will have a pungent sensation when inhaled, there is a sense of guilt, the gas inhales the lungs a little faint feeling of fever, and if the opening inhales, the mouth feels astringent, gas slightly With acidity, inhalation has a feeling of nausea.

The reporter immediately put on a mask, and the discomfort gradually slowed down. Afterwards, the reporter followed the fire department's investigation for more than two hours. Then his eyes became red and his face had a slight burning sensation.

10:30

Troubleshoot:

Exclude gas

Natural gas leak

What is the gas leak that caused the accident and will it cause harm to the human body? The fire department and environmental monitoring department have been conducting investigations.

New Austrian gas workers arrived at the scene the first time after the gas appeared. He told reporters that he began to suspect that it was a gas leak. However, when the gas was tested on site, the methane content was found to be zero, so the gas leaked from gas and natural gas was excluded.

More than 11 am, the EPA also took away gas samples. According to the analysis of relevant personnel, the gas that suddenly appeared at the crossroads was volatile, but it was not methane. It should not be strong sulfuric acid. It may be high concentration of hydrochloric acid.

The fire squadron of Dongguan City was directly subordinated to the officers and soldiers of the special squadron No. 1. A part of the squadron was armed with a flammable gas detector to search for pollution sources to check whether the toxic gas in the sewer was volatile; the other part sprayed water at the intersection to prevent further gas diffusion and reduce the gas concentration. .

13:00

Find the source:

Chemicals are dumped

Diffusion through the sewer

Around 1 pm, the fire department and the environmental monitoring department probed the source of the unknown gas. In the direction of the Fourth Ring Road toward the tin side, near the green belt of a secondary road beside Lake Bay Restaurant inside the Old Tin Village, it is obvious that there are irritating gas spills. The relevant department judges that the unknown irritant gas is diffused through the sewers here. Open.

A village official from the old Tinbian village said that at 8 o'clock in the morning, he saw a truck driving near the manhole cover and dumped something. He suspected that the source of the unknown gas was the truck, but where was the car? He is not clear. A nearby resident said that she did see a van parked near the manhole cover in the morning, but she did not see the license plate number.

Daxing Automobile Co., Ltd., a staff member with a surname of Yang Xing, told the reporter that at 10:00 in the morning, he took the customer to test the car and he smelled a strong irritating gas at the manhole cover. The customer was suddenly smoked and jumped out of the car and ran away.

18:00

EPA notification:

Unknown gas is

Chlorine-containing organic gases

At 6 o'clock yesterday afternoon, Dongguan City Environmental Protection Bureau announced the gas leakage incident. According to the report, the investigators found that the weeds at the side of the auxiliary boulevard at Jinghu Bay Restaurant had scorched and weeds. The surrounding irritating odor concentration was high, and there were traces of chemical dumping, which was initially determined as the source of odor.

The municipal environmental protection monitoring station quickly monitored the residual liquid and contaminated soil around the odor source and preliminarily concluded that it was organic gas containing chlorine, including toxic and harmful gases such as trichloroethylene and dichloroethane. The details still need to be further tested and determined. It is understood that the substance is a moderately toxic substance, and due to its low concentration, it will not affect the physical health of surrounding people. The dumping volume of this chemical is not very large and will not affect the domestic water use of residents.

On the basis of preliminary determination of pollutants, emergency disposal personnel of the Municipal Environmental Protection Agency conducted an emergency treatment on the site to prevent the expansion of pollution accidents.

hospital:

No one sent to hospital for treatment

Due to the suddenness of the incident, the gas filled the area with a great deal. Many people said that the physical reaction at that time was relatively large but did not seek medical advice.

The reporter then learned from the Dongcheng People’s Hospital that no one had visited the hospital for treatment because of a gas leak. The reporter had been following the ambulance that was ready to rescue at any time yesterday, but no one was found on the scene to be rushed to the hospital for emergency treatment due to gas intrusion.

However, the reporter learned from the old Xibian village that there was a pair of father and grandson on the morning of the same day. The old and young were ill because of inhalation of unknown gas. They were later picked up by security guards, but after a period of time, they rested and were not taken to the hospital. treatment.

So far, no reports of casualties have been received.

What to do in case of toxic gases?

What should I do if I encounter toxic gases? The police reminded this:

1. Use standing or easy-to-use protective equipment quickly to protect yourself and alert you in time. It can be quickly moved upwind or cross wind direction, do not stay in low-lying areas. Conditions may also be transferred to civil air defenses with toxic ventilation.

2. There is no time to evacuate, you can hide in a multi-storey building with good structure, block the obvious gaps, turn off the air conditioners, ventilators, etc., extinguish the fire types, and place the people as far as possible in the place where there is no door and window.

3. After leaving the affected area, remove contaminated clothing and disinfect it in time. If necessary, go to the medical department for examination and treatment.

4. When a chemical accident occurs, you should first think of using self-protective devices to protect yourself. For example, wet towels, wet wipes, and wet masks can be used to protect the respiratory tract. Second, raincoats, gloves, and rain boots can be used to protect the skin.

Small information:

The gas of this incident was mainly chlorine-containing organic gas, including toxic and harmful gases such as trichloroethylene and dichloroethane. Trichloroethylene has been used as an analgesic and a metal degreaser, as an extractant, bactericide and refrigerant, and as a clothing dry cleaner. Prolonged exposure can cause trigeminal nerve palsy and other symptoms; dichloroethane is a colorless, chloroform-like liquid at room temperature. It is toxic and potentially carcinogenic.

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