Abstract
The experiment was conducted to study the effect of different air pollution (ozone O3, sulfur dioxide SO2, and nitrogen dioxide NO2 gases) on Eruca sativa Mill. at three locations in Riyadh city, KSA. During the study, we found that the concentrations of gases were increasing gradually at the study sites. Ozone concentration and sulfur dioxide at the cement factory area site were 91 ppb and 29 ppb, respectively, as well as concentration of nitrogen dioxide was 29 ppb at the first industrial area and cement factory area. The present experiment showed that these three pollutants gases caused a significant effect on the concentration of some mineral elements. Interestingly, the plants treated with ascorbic acid showed maximum content of mineral nutrients phosphorus (P), potassium (K), nitrogen (N), cupper (Cu), iron (Fe), zinc (Zn) and manganese (Mn). The study aims to identify concentrations of ozone gas, sulfur dioxide and nitrogen dioxide in three different locations in Riyadh and determine its harmful effects on the concentration of some metal elements, and study the effect of ascorbic acid to reduce the adverse impact of these gases in Eruca sativa Mill.
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