ArticleEarth systems and environment2021
Air Quality Over Major Cities of Saudi Arabia During Hajj Periods of 2019 and 2020.
Article in Earth systems and environment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 28 citations in OpenAlex.
- GIS-based AHP multi-criteria mapping of potential solar PV power plant development: a case study in the vicinity of Holy Sites, Saudi Arabia.Scientific reports · 2026Article
- Co-occurrence of urban heat and the COVID-19: Impacts, drivers, methods, and implications for the post-pandemic era.Sustainable cities and society · 2023Review
- Article
- Source Apportionment of Atmospheric PMToxics · 2022Article
- Contamination of the marine environment in Egypt and Saudi Arabia with personal protective equipment during COVID-19 pandemic: A short focus.The Science of the total environment · 2022Article
- The COVID-19 Pandemic: Quantification of Temporal Variations in Air Pollutants Before, During and Post the Lockdown in Jeddah City, Saudi Arabia.Earth systems and environment · 2022Article
- Design a robust sliding mode controller based on the state and parameter estimation for the nonlinear epidemiological model of Covid-19.Nonlinear dynamics · 2022Article
- Context aware benchmarking and tuning of a TByte-scale air quality database and web service.Earth science informatics · 2021Article
Corrections and comments
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Authors and funding
4 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mecca and Madinah are two holy cities where millions of people in general, visit throughout the years, during Hajj (Muslim's pilgrimage) time number of people visit these holy cities from different parts of the world is very high. However, the Government of Saudi Arabia only allowed 1000 pilgrims during the 2020 Hajj especially when the world is suffering from COVID-19. In the present paper, a detailed analysis of air quality parameters available from ground measurements have been carried over major cities of Saudi Arabia, Mecca, Madinah, and Jeddah from June to September 2019 and 2020. At Mecca and Jeddah, PM
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