While Australian levels of PM2.5 pollution are relatively low year-round by global comparison, this is not the same for all pollutants. In contrast to Australia holding one of the strictest standards in the world for PM2.5 pollution (annual mean concentration of 8 μg/m3, planned to be lowe...
Looking back at the figures from 2020 on the IQAir website the US obtained an overall ranking of 84 out of a total of 106 world cities. The average annual figure was US AQI 40, in comparison to Bangladesh which was the most polluted country with a US AQI figure of 162. The cleanest...
To reiterate on the poor levels of air quality in Jakarta, the 2019 reading put it into 126thplace out of all the most polluted cities ranked in the world. This is a high ranking, and for some comparison, Bangkok came in at position number 737, with a PM2.5 reading of 22.8 µg/m...
19.2.1Particulate matter (PM) air quality guidelines PMair qualityguidelines are designed to provide appropriate targets for a broad range of policy options forair quality managementin different parts of the world. They are based on expert evaluation of current scientific evidence. The guidelines from...
In this research article, determination methods of the National Air Quality Index and the Composite Air Quality Index are discussed. The comparison between the two-indexing system reveals that the CAQI estimates more efficiently the pollutants exposure to the population as compared to the NAQI. The ...
The "PM2.5 issue" was the tipping point for China's clean air movement last year and the incentive for implementation of the new Air Quality Index (GB3095-2012). It is necessary to carry out an evaluation of the Chinese new AQI system based on comparison with developed countries and improv...
We also conducted a comparison between our method and the baseline machine learning methods by analyzing observed and predicted time series. For each independent test site, we calculated the root mean square error (RMSE) for each machine learning method. The results indicate that our method effectiv...
Beijing City Forecast Comparison. Discussion and conclusion Air pollution is an environmental problem faced worldwide, and effective AQI prediction can help in air pollution management. Traditional time series prediction models have large prediction errors in air quality prediction, which increasingly cannot...
While Australian levels of PM2.5 pollution are relatively low year-round by global comparison, this is not the same for all pollutants. In contrast to Australia holding one of the strictest standards in the world for PM2.5 pollution (annual mean concentration of 8 μg/m3, planned to be lowe...
The correction of MODIS C5.1 data using a fit to AERONET FMF works well, as shown by comparison with PARASOL data for the overlapping period [94]. This correction was used in the PMRS model [90] together with an improvement to the hygroscopic growth factor. The PM2.5 calculated using the...