Hazardous air pollution engulfs Hanoi

The capital city choked on unprecedentedly poisonous air throughout Tuesday with the air quality index (AQI) monitored at most sensor stations reaching hazardous levels of above 300 from early in the morning.

Hazardous air pollution engulfs Hanoi
Thick haze blankets Hanoi’s Tran Duy Hung District on Tuesday. 

The AQI recorded at Long Bien District’s Nguyen Van Cu Station, for example, hit 344 at 5am then dropped to 270 – very unhealthy – at 8am.

At other stations on Thanh Xuan District’s Nguyen Che Nghia Street and Cau Giay District’s Pham Tuan Tai Street, AQI was reported at nearly hazardous levels, with 299 and 295, respectively.

In the afternoon, air quality slightly improved but remained at an unhealthy level (from 151 to 200) with visible dense haze engulfing the entire city.

Independent air quality trackers, PAMAir and AirVisual, reported similar results. At 4pm, AirVisual ranked Hanoi third worldwide for the highest AQI, following Pakistan’s Lahore and India’s Delhi.

Northern provinces including Phu Tho, Tuyen Quang and Thai Nguyen suffered the same ordeal.

According to Hoang Duong Tung, head of the Vietnam Clean Air Partnership, this was the worst air quality to hit Hanoi so far.

“The pollution is alarming. Hanoi authorities should immediately warn citizens to protect themselves,” he said.

The city’s eight millions residents, regardless of their conditions, are susceptible to respiratory diseases caused by air pollution.

The Vietnam Environment Administration blamed temperature inversion as the main cause of the severe pollution.

 

As Hanoi move into the dry season, the gap between daytime and nighttime temperatures increases, leading to a big difference in surface temperatures and higher altitudes, triggering inversion.

Air pollutants, including fine particulate matter PM2.5, were trapped near ground level, worsening the air quality in Hanoi and other northern provinces.

In the days ahead, air quality is forecast to remain at unhealthy to very unhealthy levels, especially at night and in the early morning. Citizens are recommended not to open windows or exercise outdoors at these times of day, and wear face masks when going out.

Tung said Hanoi's air quality had declined drastically recently but authorities seemed reluctant to take action to improve the situation. Temperature inversion has been long cited as the main cause of pollution in Hanoi, but Tung said he found the explanation hard to credit.

“There might be a bigger source of pollution in Hanoi and neighbouring localities,” he said.

Hanoi enjoyed a precious few good days in late October before suffering the extreme pollution. Rain forecast on Wednesday and Thursday under the impacts of the northeast monsoon is expected to partially wash away harmful pollutants.

Low rainfall worsened air quality in Hanoi

Low rainfall worsened air quality in Hanoi

Last September recorded the lowest rainfall in the last six years, triggering air pollution and increasing the concentration of PM2.5, the Ministry of Natural Resources and Environment announced on Monday.

Hanoi’s declining air quality blamed on change of seasons

Hanoi’s declining air quality blamed on change of seasons

The capital of Hanoi was named as the most polluted city in the world on September 26, with the southern largest economic hub of Ho Chi Minh City not far behind.  

VNS

 
 

Other News

.
HCM City moves closer to smart city model
HCM City moves closer to smart city model
SCI-TECH & ENVIRONMENTicon  06/05/2020 

HCM City is moving toward becoming a smart city, the city’s chairman Nguyen Thanh Phong told Nguoi Lao Dong newspaper on the sidelines of a meeting on May 5.

PewDiePie signs exclusive live-streaming deal with YouTube
PewDiePie signs exclusive live-streaming deal with YouTube
SCI-TECH & ENVIRONMENTicon  05/05/2020 

YouTube's biggest star will stream on the platform again, after defecting to a rival in 2019.

Rumours swirl Apple could be set to open a factory in Vietnam
Rumours swirl Apple could be set to open a factory in Vietnam
SCI-TECH & ENVIRONMENTicon  05/05/2020 

Tech giant Apple of the United States has been stepping up recruitment for a number of positions in both Hanoi and Ho Chi Minh City, raising the possibility that they are seeking to set up a factory in Vietnam.

Ca Mau dyke network seeing severe subsidence
Ca Mau dyke network seeing severe subsidence
SCI-TECH & ENVIRONMENTicon  05/05/2020 

Some 1,670 metres of dykes in U Minh district’s Khanh Tien commune in the southernmost province of Ca Mau have subsided in recent times - the latest in a number of similar incidents along the dyke network facing the Gulf of Thailand.

Netflix stops Vietnamese scammers by eliminating free trial period
Netflix stops Vietnamese scammers by eliminating free trial period
SCI-TECH & ENVIRONMENTicon  05/05/2020 

Netflix, the most popular movie and TV streaming service, has taken action to prevent account fraud.

Vietnam to develop modern air monitoring network
Vietnam to develop modern air monitoring network
SCI-TECH & ENVIRONMENTicon  05/05/2020 

The Ministry of Natural Resources and Environment (MONRE) is moving ahead with a project on building 19 automatic air environment monitoring stations in 17 cities and provinces and 20 stations specializing in measuring PM2.5 dust.

Coronavirus: Wild animals enjoy freedom of a quieter world
Coronavirus: Wild animals enjoy freedom of a quieter world
SCI-TECH & ENVIRONMENTicon  04/05/2020 

Lockdowns give parts of the natural world an opportunity to experience life with fewer humans around.

Vietnamese network providers among top 150 telecom brands
Vietnamese network providers among top 150 telecom brands
SCI-TECH & ENVIRONMENTicon  03/05/2020 

Vietnam’s top four network providers, namely VNPT, Vinaphone, Viettel, and MobiFone, are listed among top 150 most valuable and strongest telecom brands worldwide in 2020, according to an annual report recently released by UK-based Brand Finance.

All hands on deck for tech upgrades
All hands on deck for tech upgrades
SCI-TECH & ENVIRONMENTicon  03/05/2020 

The wait going to over, as domestic and international technology businesses are expected to soon benefit from new supporting policies, breathing new life into the burgeoning tech market.

Volcanic rocks found on Phu Quy Island
Volcanic rocks found on Phu Quy Island
SCI-TECH & ENVIRONMENTicon  03/05/2020 

Experts from the Vietnam Institute of Geosciences and Mineral Resources have found a unique complex of sedimentary rocks that were formed from eruptive volcanoes 12 million years ago on Phu Quy Island, Binh Thuan Province.

Vietnam forecast to face historic heat waves in 2020
Vietnam forecast to face historic heat waves in 2020
SCI-TECH & ENVIRONMENTicon  03/05/2020 

Vietnam is forecast to suffer the highest temperatures ever recorded in 2020, according to the latest report by the Vietnam Meteorological and Hydrological Administration.

Grey-shanked douc langurs on Son Tra peninsula
Grey-shanked douc langurs on Son Tra peninsula
PHOTOSicon  03/05/2020 

Visiting Son Tra Peninsula these days, holidaymakers have the chance to see with their own eyes the everyday life of grey-shanked douc langurs – one of the world’s critically endangered primates.

Cuc Phuong park home to rare turtles
Cuc Phuong park home to rare turtles
PHOTOSicon  02/05/2020 

Located at the Cuc Phuong National Park, the Cuc Phuong Turtle Conservation Centre is home to 1,700 individuals representing Vietnam's 22 native and rare species.

Dak Lak makes plan to rescue injured elephant
Dak Lak makes plan to rescue injured elephant
SCI-TECH & ENVIRONMENTicon  02/05/2020 

Authorities in Dak Lak Province are planning to rescue an injured elephant that can't return to the wild.

Mekong River Commission: Water levels back to normal averages
Mekong River Commission: Water levels back to normal averages
SCI-TECH & ENVIRONMENTicon  01/05/2020 

The Mekong River Commission (MRC) said on April 30 that water levels along the vast majority of the lower Mekong basin have now returned to normal long-term averages but are still lower than those during the 2018 and 2019 dry season.

Coronavirus: Cyber-spies seek coronavirus vaccine secrets
Coronavirus: Cyber-spies seek coronavirus vaccine secrets
SCI-TECH & ENVIRONMENTicon  01/05/2020 

An expert warns there is "nothing more valuable" in the world today than a way to prevent the disease.

Five new rotifer species found in central Vietam
Five new rotifer species found in central Vietam
SCI-TECH & ENVIRONMENTicon  01/05/2020 

A group of biological scientists and researchers from the central city’s Science and Education College together with two professors from Belgium and Thailand have found five new rotifer species after research conducted in Vietnam from 2013.

Drought, saltwater dry up Mekong Delta’s largest reservoir
Drought, saltwater dry up Mekong Delta’s largest reservoir
SCI-TECH & ENVIRONMENTicon  30/04/2020 

The Kenh Lap Reservoir in Ben Tre Province, the largest in the Mekong Delta, is drying up due to drought and saltwater intrusion, leaving thousands of households facing a water shortage.  

HCM City prepares for disaster response ahead of rainy season
HCM City prepares for disaster response ahead of rainy season
SCI-TECH & ENVIRONMENTicon  30/04/2020 

The HCM City administration has ordered the city Steering Committee for Disaster Prevention and Rescue and local authorities to assess 300 sites that face a high risk of landslides and floods in case of heavy rains and storms.

Vietnamese IT firms thrive during Covid-19
Vietnamese IT firms thrive during Covid-19
SCI-TECH & ENVIRONMENTicon  01/05/2020 

All business fields have been affected by the epidemic, but IT firms are believed to have bright prospects as they have adapted to the new circumstances.

 
 
 
Leave your comment on an article

OR QUICK LOGIN