CPCB explains why official AQI is capped at 500 despite private apps showing higher readings | India News
People stroll amid smog as air quality deteriorates in Delhi NEW DELHI: The Central Pollution Control Board on Tuesday defended its air quality monitoring methodology, explaining why official AQI readings are capped at 500 even as private monitoring apps reported levels as high as 1,800 in Delhi after Diwali.The clarification came amid questions over the…