Bulk percipitation displays the combined effects of all water soluble components of precipitation. Dust from the earth's surface is commonly assumed to be alkaline; it is commonly reported in the literature as a constituent of the atmosphere and of precipitation.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/precipitation-chemistry-urban-area-karnataka-india-2005-2007
[2] http://admin.indiaenvironmentportal.org.in/category/author/b-c-nagendra-prasad
[3] http://admin.indiaenvironmentportal.org.in/category/author/g-s-munawar-pasha
[4] http://admin.indiaenvironmentportal.org.in/category/author/g-p-shivashankara
[5] http://admin.indiaenvironmentportal.org.in/category/journal/pollution-research
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere-and-ozone-layer
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karnataka
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangalore-t
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mandya-t
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mysore-t
[15] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rainfall