(i) High concentration of NO2 in atmosphere is harmful to plants resulting in leaf
spotting, retardation of photosynthetic activity and also suppression the vegetation growth.
(ii) Nitrogen dioxide (NO2) results in respiratory problems in human beings and leads to bronchitis.
(iii) Oxides of nitrogen have harmful effects on the nylon, rayon and cotton yarns and also cause cracks in rubber.
(iv)They also react with react with ozone (O3) present in the atmosphere, and, their decrease the density of ozone.
