return icon Vietnamnet.vn

Vietnamese scientist offers new research method to study effects of air pollution

A research work on the presence of phthalates in indoor air in northern provinces has been nominated for the 2020 Ta Quang Buu Award.

Dr Tran Manh Tri from the University of Natural Sciences and his co-workers are studying the appearance of phthalates, called the ‘silent killer’ in indoor air, which can give predict their impact on human health and indoor air quality in the future.

 

{keywords}

Dr Tran Manh Tri

 



Phthalates belong to a group of plasticizers used as additives in plastic materials, added to increase their flexibility. Since phthalates are widely used, they exist everywhere and enter food chains as well.

The toxicity of phthalates has been studied on animals in the laboratory. They change hormones in reproductive and excretory systems of rats and rabbits, and are known as a "silent killer".

In Vietnam, MOH (the Ministry of Health) in 2011 set a regulation on the maximum content of DEHP (belonging to phthalates) in drinks. However, the understanding about phthalate distribution in the environment and the risk of exposure to phthalates remains modest.

The important result of the research is the mapping of phthalate distribution in indoor air and identification of environmental sources. The study also estimates the risks and levels of phthalate exposure through air inhalation for people of different ages. 

The important result of the research is the mapping of phthalate distribution in indoor air and identification of environmental sources. The study also estimates the risks and levels of phthalate exposure through air inhalation for people of different ages.

Tri said since this is new research in Vietnam, he and his co-workers have had to spend much time on choosing analytical conditions to optimize the method.

The other difficulty is that phthalates can be easily contaminated from the laboratory environment, so it is necessary to standardize analytical techniques during the experimental process.

Asked about his research plans, Tri said he intends to assess the level of pollution and exposure risks from different environments (ambient air, dust, beverages, food, etc).

He will also continue studying the other compounds which are also agents that cause endocrine disorders and affect public health, such as siloxanes, parabens, alkylphenols, bisphenol A and benzophenone.

The air pollution in Vietnam is mostly PM 2.5 dust pollution. Direct contact with PM2.5 dust can lead to serious respiratory, cardiovascular and neurological diseases.

Gas emissions from vehicles, exhaust from factories and air pollutants from construction sites were identified as the three main causes of the deteriorating air quality in large cities .

The Ta Quang Buu Award is a Ministry of Science and Technology (MST) award that honors scientists with outstanding achievements in research in the fields of natural sciences and engineering. 

Thien Nhien

 

Hanoi air pollution remains bad

Hanoi air pollution remains bad

Air pollution in Hanoi is still bad despite social distancing regulations.

Air pollution improves in Hanoi as people stay at home, practice social distancing

Air pollution improves in Hanoi as people stay at home, practice social distancing

The social distancing policy has minimized emission activities, improving the air quality in Hanoi. However, the activities in the neighborhoods and surrounding provinces still show certain effects on air quality.

MORE NEWS

18,000 tourists spend $18.3 million on foreign tours during Lunar New Year

The number of tourists choosing foreign tours accounted for 55 to 65 per cent of the total domestic and foreign tours.

Vietnam posts trade surplus of US$3.6 billion in January

Despite decreases in both imports and exports, the country still enjoyed a trade surplus of 3.6 billion USD in the first month of 2023, according to the General Statistics Office (GSO).

VIETNAM NEWS HEADLINES JANUARY 30

NA leader launches emulation drive, tree planting festival in Tuyen Quang

Nearly 43,900 businesses pull out of market in January

Some 43,900 businesses have withdrawn from the local market in the year to date, up 14.4% year-on-year, according to the Agency for Business Registration under the Ministry of Planning and Investment.

VIETNAM BUSINESS NEWS JANUARY 30

Retail sales of goods, services up 20% in January

Vietnam to send 20 teams to VEX Robotics World Championship 2023

Vietnam is allowed to send 20 teams to the VEX Robotics World Championship 2023 (VEX Worlds), scheduled to be held in May this year in Dallas city in the US state of Texas.

Transport Ministry backs Binh Phuoc’s airport plan

The Ministry of Transport has thrown its weight behind Binh Phuoc Province’s proposal to convert its military airfield in Hon Quan District into a specialized airport.

120-year-old stone church in Da Nang still open to visitors

Built of stone and nearly 120 years old, Tung Son church has retained its special features.

Border gates in Lang Son, Quang Ninh reopen after Tet holiday

The border gates in Quang Ninh and Lang Son provinces have resumed operation after a week-long suspension of customs clearance for the Lunar New Year holiday (Tet).

Foreign investors remain optimistic about VN stock market

Foreign investors' confidence in the Vietnamese stock market is reflected in net buying activities, especially in the last months of 2022.

Tax and land-use fee reductions should continue in 2023: Finance Ministry

The Ministry of Finance (MoF) said tax support policies and land-use fee reductions for businesses should be continued throughout 2023 despite shortfalls in state budget collection.

State-owned banks under capital increase pressure

Vietnam’s four biggest State-owned banks have an urgent need for capital increase in 2023 as their charter capital is too low, with some unable to ensure the regulated minimum capital adequacy ratio (CAR), according to industry insiders.

Foreign suppliers pay US$76.7 million in taxes via online portal

On the first working day after the 2023 Lunar New Year, foreign suppliers such as Facebook, Google and Apple declared and paid taxes worth US$76.7 million.

VN in need of huge amounts of soil, sand, stone for expressway projects

The Transport Ministry has just proposed that Deputy PM Tran Hong Ha direct localities to urgently increase the exploitation capacity of stone, soil, and sand mines to serve the needs of North – South Expressway project in the 2021-2025 period.

HCM City to get cracking on key transport projects in 2023

HCM City will focus on speeding up major transport works this year.
back_to_top