Original Vietnamese content is translated by LaoDongAI

First heat of the season, outdoor workers face many health risks

An Phương - Cao Thơm (báo lao động) 08/04/2026 10:02 (GMT+7)

Prolonged heat in Hanoi and many places across the country makes outdoor workers face risks such as dehydration and heat shock.

According to the National Center for Hydro-Meteorological Forecasting, hot weather in many areas across the country, including Hanoi Capital, is likely to continue for many days to come.

Theo Trung tâm Dự báo KTTV Quốc gia, trong các ngày 8.4, 9.4 và 10.4, thời tiết Hà Nội được dự báo dao động trong khoảng 24 - 36 độ C, cao điểm nắng nóng vào khoảng từ 11 - 16h hàng ngày. Ảnh: Hạnh Thơm
According to the National Center for Hydro-Meteorological Forecasting, on April 8, April 9 and April 10, Hanoi's weather is forecast to fluctuate in the range of 24 - 36 degrees Celsius, with peak heat from about 11 am - 4 pm daily. Photo: Hanh Thom

The early summer heat with a sudden increase in temperature not only makes it difficult for the body to adapt but also clearly affects people who regularly have to work outdoors.

Ms. Nguyen Thi Thanh Tam (Hanoi) - a green tree planting worker - said that recently, after each day working outdoors, due to prolonged exposure to hot sun and high temperatures, she often experiences headaches, dizziness, and lightheadedness.

Làm việc liên tục, tiếp xúc với nền nhiệt cao trong thời gian dài khiến chị Tâm phải trang bị áo điều hoà dài tay và mũ. Ảnh: Hạnh Thơm
Working outdoors, exposed to high temperatures for a long time, Ms. Tam has to equip herself with a long-sleeved air conditioner shirt and a hat to protect her health. Photo: Hanh Thom

To reduce heat for her body, Ms. Tam equipped herself with air conditioning clothes and supplemented enough water to limit dehydration due to hot and dry weather.

At peak sunny hours, we prioritize planting trees in shady areas. When the weather is cooler, we move to the remaining locations. We also arrange interspersed rest time to avoid overworking outdoors in the hot weather, affecting health and working ability," Ms. Tam shared.

Working outdoors, Mr. Nguyen Van Thanh - a construction worker in Cau Giay ward, Hanoi - also said that in addition to choosing clothes that suit the nature of the job, on hot sunny days, he always wears long-sleeved shirts and hats to cover up and protect his health. He also prioritizes drinking enough water throughout the working process.

Thay vì làm việc liên tục trong 8 tiếng, khi đã làm việc được 1 khoảng thời gian hoặc cảm thấy mệt mỏi, anh sẽ vào chỗ mát ngồi nghỉ, sử dụng quạt và nước để hạ nhiệt. Ảnh: Hạnh Thơm
Instead of working continuously for 8 hours, when he has worked for a while or feels tired, he will go to a cool place to rest, use a fan and water to cool down. Photo: Hanh Thom

On normal days, I only drink about 1-2 liters of water. However, when the weather is hot and sweaty, the amount of water needed to supplement increases to 4-5 liters per day," Mr. Thanh said, while emphasizing that although making a living, health still needs to be put first.

According to Dr. Truong Hong Son - Director of the Vietnam Institute of Applied Medicine, early summer heat can affect many organs in the body, especially during the transitional period when the body has not yet adapted to weather changes. The risk of heat shock increases, especially in people who regularly work outdoors. Common symptoms include dizziness, fainting, rapid heartbeat, fatigue, dehydration. Prolonged heat also increases the risk of skin, eye diseases and kidney stones due to dehydration.

Bác sĩ khuyến nghị, đối với người lao động ngoài trời, cần mặc quần áo bảo hộ dài tay, che kín da, đội mũ rộng vành và bố trí thời gian nghỉ phù hợp.
Doctors recommend that outdoor workers wear long-sleeved protective clothing, cover their skin, wear wide-brimmed hats and arrange appropriate rest time.

In hot sunny conditions, workers should shorten working hours to 30-45 minutes, take a 15-20 minute break to avoid exhaustion and heat shock. Drinking water regularly (each 15-20 minutes) and supplementing electrolytes is necessary to compensate for the lost sweat, ensuring labor safety. Drinking enough water is also especially important to compensate for the amount of sweat lost during labor," the doctor advised.

People should drink water regularly, divided into many times with small amounts instead of waiting for thirst to drink more at the same time, prioritize water-rich foods such as fruits, soups, and limit the use of tea and coffee because it can increase the risk of dehydration.

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