Impact of dust pollution on photosynthetic pigments of some selected trees grown at nearby of stone-crushers

Abstract

A  significant  reduction  in  chlorophyll  ‘a’,  ‘b’  and  carotenoid  of   all   the   selected  trees   were  observed   in polluted  site  as   compared  to   their  control   site.  There   was  maximum   (30.99%)  reduction   in   chlorophyll   ‘a’ on the leaves of Psidium guajava L. and minimum  (6.52%)  on  Eucalyptus  citriodora  Hook.  while  maximum chlorophyll ‘b’ contents (43.43%) was depleted in  Syzygiun  cumini  L.  and  minimum  (11.11%)  in  Eucalyptus citriodora Hook..