The AQI in Diu is at 88, which places it in the Moderate category. PM2.5 and PM10 are at 24 µg/m³ and 88 µg/m³ . Ozone (O3) levels are at 17 ppb , with NO2 levels at 13 ppb , which may cause mild irritation in sensitive individuals. CO at 589 ppb is within the acceptable limit, so most individuals can still go about their day. However, if you suffer from respiratory conditions, you may want to limit outdoor exposure.