Modeling of solid waste collection and transportation in metropolitan areas using WAGS model: implication of CO2 emission and external costs

Annually more than 80% of the overall budget of the uran solid waste management system in Iran is allotted to collection and transportation of the solid wastes. The main objective of the current study is to evaluate the external costs associated with solid waste collection, transfer, and transportation in Tehran for the period of 2018 to 2032 based on the current situation. Waste guidance system as well as Energy and Environment software were applied to anticipate the external costs. Results of the present study indicated that more than 535 million US dollars would be required during the next 15 years in the solid waste collection, transfer, and transportation sector to supply necessary machinery, manpower, fuel, maintenance and other relevant expenses. The principal fraction of the required budget (i.e. 48.99%) should be allocated to provide collection and transportation equipment costs. Manpower, fuel, maintenance, and miscellaneous expenses require 30.34, 7.37, 12.78 and 0.5 percent, respectively of the overall expenses in the solid waste collection, transfer, and transportation sector. In the context of global warming impact, more than 970 million tons of carbon dioxide will be anticipated to be emitted by solid waste collection, transfer, and transportation sector in Tehran during the studied period imposing 23.1 million US dollars to compensate its external effects

Data for: Phytoremediation: Data on effects of titanium dioxide nanoparticles on phytoremediation of antimony polluted soil

Data are available in the article and also attached here.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

Natural and human-induced impacts on coastal groundwater

Groundwater is the main source of potable water in most areas of Mazandaran province, like Sari and Babol city. Thus the safety of groundwater supplies is very important in these regions. Unfortunately attention to groundwater quality has remained limited in Iran. In recent years, the growth of industry, technology, population, and water use has increased the stress upon both land and water resources of Mazandaran province. The main pollutants of groundwater in Mazandaran province are domestic, industrial and agricultural wastewater discharges. In addition, contribution of municipal and rural solid wastes in deterioration of groundwater quality of the Mazandaran province is considerable. The quality of several water wells in Mazandaran province was investigated in this research. In tested water wells, the concentrations of Cu, Cr, Zn and NO3 are within WHO standard limits, but Pb, Se and Cd concentrations are often exceeding the WHO maximum permissible standard values. Results show that the current quality of groundwater in Mazandaran province does not present immediate health related concerns. However, the quality of water wells in Mazandaran province is not reliable because of relatively high rate of various pollutants discharges into groundwater resources. Consequently, establishment of both monitoring programs and appropriate regulations to minimize uncontrolled discharges into groundwater resources is necessary for conservation of this valuable source of water supply in Mazandaran province