Angol was once deemed the most polluted city in Latin America. The PM air concentration is several times higher than the WHO deems safe, making it a dangerous place to live. Officials suggest that people close their windows to prevent air from entering their house, thus breathing it in.
Throughout the week, the air in Angol shifts from unhealthy, to moderate, to good, but mostly hovers on the unhealthy and moderate side. The pollution stems from the booming industrial revolution, thus flooding the air with dangerous, toxic emissions that are harmful to human health (IQ Air).