Journal Article

Assessment of seasonal variation for air pollutant accumulation by Zizyphus tree under washing treatment

El-Nakhlawy, Fathy Saad, Almehmadi, Fahd Mosallam, Shaheen, Mohamed Abdulraheem, Al-Shareef, Abdulmohsin Rajeh, Ihsan, Muhammad Zahid

2016

Overview

A field study was carried out near Jeddah Industrial Zone to estimate the leaf impairment, physiological disorders, and air pollutant accumulation potential of Ziziphus tree. The experiment was triplicated in RCBD design with factorial arrangement having seasonality as the main plot and washing as subplot treatments along with the control. Accumulation of heavy metals and micronutrients in plant foliage varied significantly under the influence of seasons and washing treatments. The maximum accumulation of cadmium, chromium, nickel, and lead were perceived in summer season while the minimum was observed in winter. Contrarily, a greater acquisition of iron, copper, zinc, and manganese was observed in autumn. Washing significantly reduced the accumulation of Cd, Cr, Ni, and Pb by 58, 90, 80, and 96 %, while Fe, Cu, Zn, and Mn by 89, 37, 60, and 93 %, respectively. Leaf protein and nitrogen content illustrated a greater adjustment for pollutants by presenting a minimum variation (14–18 % and 2–3 %) to seasonality. In contrast, leaf area and stomatal aperture were significantly disturbed and resulted in minimum recovery under washing. Correlation analysis revealed a stronger negative interaction of heavy metal accumulation to leaf features while non-significant interaction was perceived for microelements. In conclusion, planting of Ziziphus trees along industrial areas may impede potential threats of toxic pollutants to human and ecosystem.

• Publisher: Springer International Publishing,Springer Nature B.V
• Subject: Accumulation / air / Air Pollutants - metabolism / Air pollution / Arid zones / Atmospheric Protection/Air Quality Control/Air Pollution / autumn / Cadmium / Carbon / Carbon monoxide / Chromium / Civil aviation / Climate change / copper / Correlation analysis / Desalination / Earth and Environmental Science / Ecology / ecosystems / Ecotoxicology / Emission standards / Energy consumption / Environment / Environmental Management / Environmental monitoring / Environmental Monitoring - methods / field experimentation / Foliage / Greenhouse gases / Heavy metals / humans / Industrial areas / iron / lead / leaf area / leaf protein / Leaves / Manganese / Metals, Heavy - metabolism / Meteorology / Micronutrients / Monitoring/Environmental Analysis / Morphology / Nickel / Nitrogen / nitrogen content / Outdoor air quality / Ozone / Physiology / Plant Leaves - metabolism / plant micronutrients / planting / Pollutants / seasonal variation / Seasonal variations / Seasons / stomatal movement / Summer / toxicity / Trees / Trees - metabolism / Urban renewal / VOCs / Volatile organic compounds / washing / Winter / zinc / Ziziphus / Ziziphus - metabolism