Historic air quality near SE Insley Street, Portland History Historic air quality graph for SE Insley Street, Portland 7 AQI⁺ CN Excellent 09:00 Local time HourlyDaily AQI⁺ CN Created with Highcharts 6.2.011:0017:0023:0005:0011:0017:0023:0005:0003060 ...
Interested in hourly forecast?Get the app Historical Historic air quality graph for Costa Mesa Created with Highcharts 6.2.020 Oct, 10:00 AM20 Oct, 8:00 PM21 Oct, 6:00 AM21 Oct, 4:00 PM22 Oct, 2:00 AM050100 How to best protect from air pollution?
spatiotemporal models for hourly concentrations. Google Street View cars that provide data of very high spatiotemporal resolution have also been recruited in applications aiming at providing high-resolution maps of current air pollution levels [18,23]....
Moreover, this study demonstrates the use of low-cost sensor data as correction for the negative bias that the air quality model typically displays for PM2.5 concentrations. FINN database includes information of daily emissions and starting time of the fire but does not include hourly variation ...
Using a Citizen-installed Network of PM2.5 Sensors to Predict Hourly PM2.5 Airborne Concentration. Water Air Soil Pollut 236, 102 (2025). https://doi.org/10.1007/s11270-024-07733-x Download citation Received02 July 2024 Accepted24 December 2024 Published10 January 2025 DOIhttps://doi.org/...
40,41 This interpolation method uses hourly measured PM2.5 pollution data collected at the official fixed-site monitoring stations (n = 34) and land-cover data obtained from satellite images.42 The model chain provides daily PM2.5 values on a dense, irregular receptor grid by using data ...
Environmental Protection Agency (EPA) established an Air Quality System (AQS) database, which provides hourly or daily concentrations of pollutants measured from 1980 through 2009 for different geographic areas. Researchers can utilize this database to make a daily, monthly, or year-long estimation ...
In the coming decades, we expect that satellite measurements will achieve a very high resolution in space as well as a more frequent revisit in time to track pollution on hourly basis within one kilometer or less (atmosphere) and a few meters’ (ocean) footprints. At the same time, many ...
For the latter, we have demonstrated the role that dispersion models can play by using two complimentary models, KCLurban, which gives source apportionment information, and Community Multi-scale Air Quality Model (CMAQ)-urban, which predicts hourly air quality. The KCLurban model is in close ...
The 24- hourly AQI for commercial and industrial sectors can be calculated by:(8)AQIRSPM,SO2,NO2=24.48×RSPMSTD+SO2STD+NO2STD1.07 Further, AQI was categorized indicating simply understandable information; if values were less than 30, air quality was considered good, moderate if lies between...