Coniology or koniology (from Greek κόνις, konis or κονίᾱ, koniā, `dust`; and -λογία, -logia) is the study of atmospheric dust and its effects. Samples of dust are often collected by a device called coniometer. ... Found on http://en.wikipedia.org/wiki/Coniology
1) Atmospheric science 
Coniology or koniology (from Greek κόνις, konis or κονίᾱ, koniā, `dust`; and -λογία, -logia) is the study of atmospheric dust and its effects. Samples of dust are often collected by a device called coniometer. ...