ASSESSMENT OF JEDDAH PARKS HEALTH STATUS BY Cyperus rotundus AND SOIL ANALYSIS UNDER WASTE WATER IRRIGATION

Abstract

-To investigate the health status of public parks in Jeddah city, a field survey was conducted based on the Cyperus rotundus weed and soil analysis of wastewater-irrigated parks during 2012. The city was divided into five different locations (North, South, East, West and Middle) and five parks were randomly sampled from each location; thus, the total number of sampled parks were twenty five. Toxic metals concentration were analyzed in the soil and in the plants while bacterial count was determined from the weed leaves. All studied toxic metals have significantly crossed the European Union safety limits for plant samples, while soil samples were just beyond the limit. The highest concentration was perceived for Lead (133-232 mg kg , number of total E. coli form 34 and fecal coli form 8.65 at South and East Jeddah locations. These locations have also produced the highest concentration of toxic metals for both plant and soil samples. In crux, C. rotundus weeds may serve as an indicator of parks health by toxic metals and bacterial analysis that may infect the visitors, especially children's playing on it.Keywords: Cyperus rotundus, chromium, bacteria, parks health, waste water irrigation. RESUMO -Para investigar

Effect of sewage water discharge on the Red Sea and shore Water and soil chemical characteristics

“…The average concentrations of Fe, Cu, and Zn in the sediment of the sewage effluent discharged in the Red Sea water were estimated by El-Yami (2010) as 8574, 112, and 1557 µg/g. El-Nakhlawy et al, (2016) mentioned that wastewater irrigated areas produced the highest concentration of toxic metals in plant and soil samples compared to irrigated sites with normal water. The discharge of the industrial wastewater in seawater near the city of Zonguldak beaches was assessed by Coban et al (2009) and found to have the following concentrations Mn 15.0±O.98, Cr 12±8.6, Mg 715±8.3, Cu i22± 1.5, Ni 142±ıo.6, Pb 39±9.0 and Zn 834±4.1.…”