Why does pollution increase in cold weather?

October 25, Kathmandu. With the onset of winter each year, air pollution begins to increase. The amount of air pollution has started increasing this year as the weather is getting colder. On Wednesday, air pollution in five places outside the Kathmandu Valley exceeded the danger mark.

Generally, air quality measurement (AQI) is said to be 100 or less. But on Wednesday, the Air Pollution Measurement Center under the Department of Environment noted that the air quality measurement in Pokhara had reached 176. Similarly, AQI of Biratnagar and Mahendranagar has reached 159.

According to the Air Pollution Measurement Center, the PM10 indicator for measuring dust particles in the air of Pokhara was measured at 112.99 micrograms / cubic meter on Wednesday. The PM2.5 was measured at 106.09 micrograms / cubic meter, measuring the amount of harmful gases such as carbon monoxide, sulfur and nitrogen oxides in the air.

According to the Center, the level of air pollution in Bharatpur and Janakpur has not exceeded the danger level.

Why does pollution increase in winter?

The air is cold in winter too. The density of cold air is so high that it cannot fly away as easily as hot air. The upper bouts featured two cutaways, for easier access to the higher frets. Thus the layer of cold and hot air creates pollution within this atmosphere. Due to which pollution is more in winter season.

Thus, when there is more pollution in cold weather, lung cancer also increases in non-smokers. Niraj explains the bomb. Pollution not only causes allergies in people but also causes heart attacks and diabetes. The bomb says.

How much does pollution affect health?

More than 20 percent of deaths from heart disease are caused by air pollution. According to doctors, pollution contributes to 43 percent of all lung deaths.

Various studies have shown that the effects of pollution are even more alarming. According to the State of Global Air Report-2020, pollution is also the cause of 42,100 deaths in Nepal every year.

Studies have shown that most people die of COPD (lung related) diseases due to pollution. Sixty-six percent of deaths from lung problems have been attributed to pollution.

Experts also say that 24 percent of deaths from heart disease are due to air pollution. According to experts, the biggest impact of air pollution is on the lungs. Contaminated airborne particles initially reach the lungs through respiration. So it seems to have more effect. In the end, it also affects the limbs. But if we look at death, most of the deaths are due to pollution.

According to the study, problems such as infant mortality, premature birth, and birth defects are also caused by pollution. Pollution is the cause of 22 percent of all neonatal deaths, according to the State of Global Air Report 2020.

According to the report, 47% of deaths due to respiratory diseases, 34% of deaths due to cancer and 25% of deaths due to diabetes are due to air pollution.

How does pollution affect health?

When it comes to air pollution, invisible PM 10 and PM 2.5 are mentioned. Of these, PM10 is associated with dust particles in the air and PM2.5 is associated with harmful gases such as carbon monoxide, sulfur and nitrogen oxides.

Dr. Tribhuvan University Teaching Hospital, Maharajgunj Senior Chest Disease Specialist. According to the bomb, these gases in the polluted air enter the lungs through the trachea and reach the blood through the trachea and ducts.

Oxygen from the trachea and ducts coming out of the air reaches the blood and the process of expelling the harmful substance carbon dioxide from the ducts from the ducts to the trachea of ​​the lungs continues in the circulatory system.

PM2.5 gas particles are bad for health. It also contains carcinogens such as nicotine, catechum, nitrogen-dioxide, ozone, and sulfur dioxide.

These gases enter through the trachea. These harmful substances reach the bloodstream through various organs and harden the blood vessels. Which raises our blood pressure.

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