Comparison of the industrial source complex and AERMOD dispersion models: case study for human health risk assessment

Air quality models are typically used to predict the fate and transport of air emissions from industrial sources to comply with federal and state regulatory requirements and environmental standards, as well as to determine pollution control requirements. For many years, the U.S. Environmental Protection Agency (EPA) widely used the Industrial Source Complex (ISC) model because of its broad applicability to multiple source types. Recently, EPA adopted a new rule that replaces ISC with AERMOD, a state-of-the-practice air dispersion model, in many air quality impact assessments. This study compared the two models as well as their enhanced versions that incorporate the Plume Rise Model Enhancements (PRIME) algorithm. PRIME takes into account the effects of building downwash on plume dispersion. The comparison used actual point, area, and volume sources located on two separate facilities in conjunction with site-specific terrain and meteorological data. The modeled maximum total period average ground-level air concentrations were used to calculate potential health effects for human receptors. The results show that the switch from ISC to AERMOD and the incorporation of the PRIME algorithm tend to generate lower concentration estimates at the point of maximum ground-level concentration. However, the magnitude of difference varies from insignificant to significant depending on the types of the sources and the site-specific conditions. The differences in human health effects, predicted using results from the two models, mirror the concentrations predicted by the models.     

Biobased Poly(1,3-propylene 2,5-furandicarboxylate)-Carbon Nanotubes Nanocomposites with Enhanced Thermal,Mechanical Properties and Crystallization Behavior

Journal of Polymers and the Environment - Biobased poly(1,3-propylene 2,5-furandicarboxylate) (PPF) and carbon nanotubes (CNTs) nanocomposites were prepared by a solution and coagulation method at...     

Optimal recycle price game theory model for second-hand mobile phone recycling

Human societies develop rapidly through the advancement of technology; however, with these advancements, many problems are emerging. The topic chosen for this study surrounds the e-waste, which has become a major problem around the world. Second-hand and unused mobile phones are a big part of globally generated e-waste. If these devices are properly recycled, they can generate substantial economic and resource value. Yet if they are indiscriminately discarded, they cause a profound environmental impact. Given the current low recovery rate of mobile phones, an increase in recovery rates becomes critical in lessening economic and environmental impacts. Based on the status quo of second-hand mobile phone recycling processes in China, this article analyzes the behavior of individuals and recyclers through a comprehensive static information game theory and finds ways to increase the recycling rate of second-hand mobile phones. The study helps the customers, to clearly identify the recycle price. In case of market, the government policy can be introduced with a reward and punishment mechanism. Furthermore, under the ideological guidance of game theory, this paper also establishes a corresponding price model of second-hand mobile phone recycling based on best response dynamics like search, variable neighborhood search, and hybrid meta-heuristic method. This model shows that the recovery time differences have a significant impact on the recovery price. Moreover, to an extent, this model can promote the possibility and initiative of customers choosing cell phone recycling.

     

Occurrence and distribution of antibiotics in coastal water of the Taizhou Bay,China: impacts of industrial activities and marine aquaculture

Environmental Science and Pollution Research - The occurrence, spatial distribution, and source analysis of antibiotics in global coastal waters and estuaries are not well documented or understood....     

Exploring the interaction relationship between Beautiful China-SciTech innovation using coupling coordination and predictive analysis: a case study of Zhejiang

Environment, Development and Sustainability - Exploring interaction of Beautiful China and SciTech Innovation is an important way to realize economic transformation and sustainable development in...     

Functionalized porous nanoscale Fe3O4 particles supported biochar from peanut shell for Pb(II) ions removal from landscape wastewater

Environmental Science and Pollution Research - The large amounts ofheavy metal from landscape wastewater have become serious problems of environmental pollution and risks for human health. The...     

Nonisothermal Melt Crystallization Study of Poly(ethylene succinate)/Cellulose Nanocrystals Composites

Journal of Polymers and the Environment - The nonisothermal melt crystallization behavior of fully biodegradable poly(ethylene succinate)/cellulose nanocrystals (PES/CNC) composites with low...     

Continuous hydrodynamic mixing weakens the dominance of Microcystis: evidences from microcosm and lab experiments

Environmental Science and Pollution Research - Hydrodynamic mixing is one of the important environment factors in determining phytoplankton community compositions. Here the influences of continuous...     

Associations of bisphenol exposure with thyroid hormones in pregnant women: a prospective birth cohort study in China

Environmental Science and Pollution Research - Bisphenols are endocrine disruptor chemicals that disrupt thyroid hormone homeostasis. However, evidence on the effects of bisphenol mixtures on...     

The mediating role of coagulation function on the association of prenatal exposure to aflatoxin B1 and postpartum hemorrhage in Guangxi,China

Environmental Science and Pollution Research - Pregnant women are vulnerable to certain environmental agents, one of which is aflatoxin. As one of the most popular aflatoxins, Aflatoxin B1 (AFB1)...