Can Drones Help Thailand through the Haze?
The capital of Thailand has a problem. Bangkok’s air pollution is bad—like really bad. In fact, the air quality is so poor there that many of its residents are now donning air-filtering face masks as part of their daily routine. It’s so bad that earlier this year a thick smog blanketed the city, causing city-dwellers and even their pets to suffer.
How Bad Is It?
Bangkok’s air quality is so bad that . . .
- The air there is often visible, with a thick, hazy, foggy appearance.
- Due to high demand, pharmacies and convenience stores reported a recent shortage of the N95 facemasks that commuters and pedestrians wear to help filter the air they breathe.
- The Public Health Ministry warned people to stay indoors, especially those with respiratory or heart ailments.
- More than 400 schools had to be closed on some of the worst days.
How Did It Get This Bad?
Air pollution in Bangkok has several causes, including:
- The almost 10 million diesel cars and buses that crowd city streets
- Less-than-stringent or unenforced air-quality regulations
- Slash-and-burn farming practices in surrounding areas
- Coal-powered factories and power plants
- Ongoing construction throughout the city
- Still, dry weather conditions
These factors and more have led to increased levels of PM2.5, the microscopic dust particles that are small enough to enter the bloodstream and travel to every bodily organ. While “safe” levels of PM2.5 range from 25 to 50 mcg (micrograms per cubic meter of air), Bangkok’s have reached 95 mcg or higher.
And it’s not just a problem in Bangkok, or even Thailand. It’s estimated that 92% of Asia’s population face significant risk to their health due to air pollution.
What Are the Health Impacts?
Air pollution can negatively affect human health in many ways:
- Acute respiratory infections and ailments, like asthma, bronchitis, COPD and lung cancer
- Irregular heartbeat, heart disease, stroke
- Headaches, learning problems
Making It Rain
While stricter enforcement of air-quality regulations is needed, Bangkok is fighting pollution in a unique way—with water. Trucks and rooftop cannons routinely spray water through the air to help clear air pollution. Drones are being used to spray a mixture of water and nonharmful chemicals to clear the air in parks and smaller areas. Even cloud-seeding planes that force rain have been employed to help clear the air.
However, these methods are only a short-term solution to a complex, difficult problem. And they do nothing to help reduce the levels of PM2.5. So the government is also looking at shutting down the most polluting factories, replacing diesel-fueled public buses and boats, updating vehicle emissions standards and placing controls on construction sites.
- 91% of the world’s population lives in areas where air quality is considered less than safe.
- As bad as its air quality is, Bangkok wasn’t even among the 50 worst cities for air pollution in 2018.
- To learn more about the air quality in your area, check out the Real-time Air Quality Index Visual Map from aqicn.org.
- Thailand fights Bangkok air pollution with water-spraying drones — Quartz
- Bangkok residents grapple with shortage of N95 masks as smog continues to engulf city, SE Asia News & Top Stories – The Straits Times
- Bangkok citizens cough up BLOOD as city is blanketed in thick smog and even PETS get sick – NewsyPeople
- WHO | Ambient air pollution: Health impacts
- Bangkok Air Pollution: Authorities to make it rain to fight pollution | Youtube
- Bangkok Is Choking on Air Pollution. The Response? Water Cannons | The New York Times
- Thai Officials Close Schools As Toxic Air Pollution Chokes Bangkok : NPR
- 4 Things You Need to Know about Outdoor Air Pollution | Norwex Movement
- World Most Polluted Cities in 2018 – PM2.5 Ranking | AirVisual
- Air Pollution in World: Real-time Air Quality Index Visual Map