NDLI: Development of case historical logical air quality indices via fuzzy mathematics (Mamdani and Takagi–Sugeno systems), a case study for Shahre Rey Town

Content Provider	Springer Nature Link
Author	Sarkheil, Hamid Rahbari, Shahrokh
Copyright Year	2016
Abstract	In the present world, various natural and human activities introducing contaminants to the environment system result in diminishing of air quality in both global and local scopes. In the considered scopes, environmental officials and corresponding societies must be informed of degree of air quality. As a result, many scientists and standards try to develop and present a variety of air quality indices for estimation of adverse effects of air pollution, though the indices have their own limitations such as high levels of subjectivity and not hybrid attitude. This study attempts to develop fuzzy-based air quality indices analyzing: CO, PM$_{2.5}$, SO$_{2}$, NO$_{2}$ and O$_{3}$ for most urban areas or industrial areas without special pollutants like BTEX or H2S. Two fuzzy inference systems with different types: 1—Mamdani and 2—zero-order Takagi–Sugeno, are prepared for assessing the air quality index. In Mamdani Fuzzy Air Quality Index (MFAQI) different weighting factors are applied to each pollutant to include their degree of significance based on a query analyzing the health impacts, health precautions and safety measures. Next, the Takagi–Sugeno Fuzzy Air Quality Index (TSFAQI) is produced by mam2sug code in MATLAB R2013a. The naming FAQIs is applied for Shahre Rey Town as a case study to have a measure of applicability and performance of the proposed fuzzy indices. The concentration data for air criteria pollutants relate to the 2-year interval from April 2013 to April 2015. The prepared MFAQI and TSFAQI are studied and compared to the well-known air quality index (AQI) by United States Environmental Protection Agency for cross-validations. The cross-validation functioned by CF tool in MATLAB R2013a presents good fittings with slopes of 0.9934 and 1.079 (with 95 % accuracy) relatively for MFAQI and TSFAQI. The results express that the TSFAQI overestimates the AQI, while the MFAQI underestimates the AQI. On the other hand, TSFAQI exhibits less deviation from AQI; this is while the largest deviation occurred in the study equals 14.8 %.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	19
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-10-03
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Air pollution Air quality index Fuzzy inference Pollutant Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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