THE highest recorded temperature in Myanmar reached around 40°C in the last 10 days. In comparison, the highest temperature in late March 2020 exceeded 43°C, setting the record for the hottest temperature. This year, however, the heat in late March feels even more intense than in previous years. Myanmar’s residents are facing the consequences of environmental degradation and climate change, with rising temperatures taking a toll on their well-being.
The increase in daytime temperatures has resulted in stronger ultraviolet (UV) radiation from the sun, making the effects of the heat more noticeable. UV radiation is an invisible electromagnetic wave emitted by the sun, categorized based on its wavelength. The green colour corresponds to wavelengths between 0-2.9 nanometres, yellow to 3-5.9 nanometres, orange to 6-7.9 nanometres, and red to 8-10 nanometres.
During the second week of March, the UV index was between 6 and 7, indicating high levels of UV radiation. This has caused the midday heat to feel more intense, necessitating special attention to health. To prevent heat-related risks, it’s advised to stay in shaded, cool areas during the hottest parts of the day. To protect your skin from direct sun exposure, wear light-coloured, protective clothing such as long-sleeved shirts, hats, and scarves to cover your arms, neck, and shoulders. It’s also recommended to drink plenty of water and wear a hat when outdoors during the day.
UV radiation is at its highest during this period. Prolonged exposure to sunlight can lead to skin burns, skin darkening, premature ageing, decreased immunity, eye damage, and an increased risk of skin cancer. Skin can begin to deteriorate before it fully matures, accelerating ageing, weakening the immune system, blurring vision, and increasing the likelihood of skin cancer. For those who must work outdoors in direct sunlight, it’s crucial to take preventive measures to reduce exposure. Extra caution is needed for elderly individuals, those with hypertension, diabetes, heart conditions, pregnant women, and those in poor health. They should seek shaded, cooler areas to mitigate these risks.
UV rays are most harmful between 10 am and 4 pm, so it’s advisable to avoid direct sun exposure during this time. Wearing sunglasses that block 99 per cent of UV rays can help protect your eyes. Given the high temperatures and UV radiation, it is vital for everyone to follow safety guidelines to avoid heat-related health issues and the harmful effects of UV rays, as recommended by the Public Health Department.
