![Pollution in Dhaka, Bangladesh, which has topped a list of countries with the most-polluted air in the world. EPA](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/3NPI2IYCGJKZUG6SWBBSNR4LRI.jpg?smart=true&auth=23ac7303d6bfa8fda9dcb68617bd1eefd2bc8d66c847692c0438e37088947cf8&width=400&height=225)
Pollution in Dhaka, Bangladesh, which has topped a list of countries with the most-polluted air in the world. EPA
Pollution in Dhaka, Bangladesh, which has topped a list of countries with the most-polluted air in the world. EPA
Bangladesh, Pakistan and India have world's most-polluted air, report finds
Middle Eastern countries also have high levels of particulate pollution, although concentrations appear to be falling