Jerusalem recorded its worst air pollution levels ever, at 173 times normal levels. In some other parts of the country, air pollution levels were at their worst for 75 years.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/worst-air-pollution-ever-jerusalem-sandstorm-engulfs-mideast
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-israel
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/israel
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/storms
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heat-waves
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asthma
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases