Chunlong (Carl) Zhang
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Dr. Zhang is a Professor of Environmental Science and Environmental Chemistry at the University of Houston-Clear Lake where he is also the Program Chair of the Environmental Science Program. Dr. Zhang's General Research Interests include Environmental sampling and analysis; Environmental chemistry; Environmental remediation; Fate, transport, and remediation of organic chemicals and heavy metals in soil, groundwater, and sediment. Some past and on-going research projects include: Sustainable remediation; Analysis of emerging contaminants (endocrine disrupting chemicals; bromate); Biodegradation of surfactants, explosives chemicals, pharmaceutical and endocrine disrupting compounds; Sorption of polycyclic aromatic hydrocarbons, explosives and endocrine disrupting compounds in soil and sediment; Effects of surfactants on air-water partition of chlorinated solvents; Zero-valent iron for the remediation of chromium contaminated soil and sediment.
Recent Submissions
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Side Chains of Parabens Modulate Antiandrogenic Activity: In Vitro and Molecular Docking Studies, Environmental Science and Technology
(Environmental Science & Technology, 2017)Parabens have been widely used in packaged foods, pharmaceuticals, and personal-care products. Considering their potential hydrolysis, we herein investigated structural features leading to the disruption of human androgen ... -
Spatial Distributions and Enantiomeric Signatures of DDT and its Metabolites in Tree Bark from Agricultural Regions across China
(Environmental Pollution, 2017)Tree bark is considered as an effective passive sampler for estimating the atmospheric status of pollutants. In this study, we conducted a national scale tree bark sampling campaign across China. Concentration profiles ... -
In Vitro an in Silico Investigations of the Binary-mixture Toxicity of Phthalate Esters and Cadmium (II) to Vibrio Qinghaiensis sp.-Q67
(2017)Phthalate esters (PAEs) are widely used as plasticizers and have become one of the emerging contaminants with an increasing public concern. The residues of PAEs frequently co-exist with heavy metals such as cadmium (Cd) ... -
Benzotriazole UV 328 and UV-P Showed Distict Antidandogenic Activity upon Human CYP3A4-mediated Biotransformation
(2017)Benzotriazole ultraviolet stabilizers (BUVSs) are prominent chemicals widely used in industrial and consumer products to protect against ultraviolet radiation. They are becoming contaminants of emerging concern since their ... -
Estimating Nitrogen Oxides Emissions at City Scale in China with a Nighlight Remote Sensing Model
(Science of the Total Environment, 2016)Increasing nitrogen oxides (NOx) emissions over the fast developing regions have been of great concern due to their critical associations with the aggravated haze and climate change. However, little geographically specific ... -
A New Speciation Scheme of Soil PAHs toward Risk Assessment
(Journal of Soil and Sediment, 2015)PURPOSE: The speciation of soil organic pollutants is of great importance for risk assessment and contaminant remediation, however, only few studies have attempted to develop a speciation scheme for a facilitated risk ... -
Enhanced Adsorption of Trivalent Arsenic from Water by Functionalized Diatom Silica Shells
(PLoS ONE, 2015)The potential of porous diatom silica shells as a naturally abundant low-cost sorbent for the removal of arsenic in aqueous solutions was investigated in a batch study. The objective of this work was to chemically modify ... -
Current Techniques for Detecting and Monitoring Algal Toxins and Causative Harmful Algal Blooms
(Journal of Environmental Analytical Chemistry, 2015)The detection and monitoring techniques for algal toxins and the causative harmful algal blooms (HABs) are essential for the protection of aquatic lives, shellfish safety, drinking water quality, and public health. Toward ... -
Assessing the Underlying Breast Cancer risk of Chinese Females contributed by dietary intake of residual DDT from Agricultural Soils
(Environment International, 2014)The greatest concern over DDT exposure in China arose since the early 1990s for the rising breast cancer incidence, and the cause still remains to be elucidated. An extensive survey of DDT background in agricultural soils, ... -
Atomic Insights into Distinct Hormonal Activities of Bisphenol A Analogues toward PPARy and ERa Receptors
(2014)Bisphenol A analogues (BPAs) belong to a wide variety of large volume chemicals with diverse applications yet emerging environmental concerns. Limited experimental data have demonstrated that BPAs with different halogenation ... -
Hexachlorocyclohexanes in Tree Bark across Chinese Agricultural Region: Spatial Distribution and Enantiomeric Signatures
(Environmental Science and Technology, 2014)The environmental issue caused by atmospheric hexachlorocyclohexanes (HCHs) has been a worldwide concern due to their long-range transport potential. Tree bark is an excellent passive sampler for monitoring atmospheric ... -
Incorporation of Green Remediation into Soil and Groundwater Cleanups
(International Journal of Sustainable Human Development, 2013)The remediation of contaminated soil and groundwater is essential toward the development of a sustainable society. However, remediation activities at various stages will also inherently add a significant burden of environmental ... -
Biosorption and Toxicity Response to Arsenite (As(III) in Scenedesmus quadricauda
(CHempsphere, 2013)Toxicity and biosorption responses to arsenite (As[III]) were examined in a 96-h exposure study using Scenedesmus quadricauda, one of the most popular green algae distributed in freshwaters in China. Results indicated that ... -
The Role of Humic Acid in the Toxicity of Arsenite to the Diatom Navicula sp.
(Environmental Science Pollution Research, 2013)Dissolved organic matter (DOM) affects arsenite [As(III)] toxicity by altering its sorption equilibrium at the cell wall interface. A better understanding of such mechanism is of great importance to assess As(III) ecotoxicity ... -
Optimal sample preservation and analysis of CR(VI) in drinking water smaplers by high resolution ion chromatography followed by post column ractioni and UV/Vis detection
(2012)A recent study by the Environmental Working Group reported the detection of hexavalent chromium (Cr(VI)) in tap water at 31 out of 35 states investigated in the United States. Even though Cr(III) is an essential element ... -
Distribution, historical trends and inventories of polychlorinated biphenyls in sediment from Yangtze River Estuary and adjacent East China Sea
(Environmental Pollution, 2012)A large portion of polychlorinated biphenyls (PCBs) from e-waste released into the coastal areas may be the potential source of PCBs to the global oceans. The paper presents data of PCBs concentrations in fifty surface ... -
Enantioselective Cytotoxicity Profile of o,p'-DDT in PC 12 Cells
(PLoS ONE, 2012)Background The continued uses of dichlordiphenyltrichloroethane (DDT) for indoor vector control in some developing countries have recently fueled intensive debates toward the global ban of this persistent legacy contaminant. ... -
Analysis of Inorganic Nitrogen and Related Anions in High Salinity Water Using Ion Chromatography with Tandem UV and Conductivity Detectors
(Journal of Chromatographic Science, 2011)Over 97% of the Earth's water is high salinity water in the form of gulfs, oceans, and salt lakes. There is an increasing concern for the quality of water in bays, gulfs, oceans, and other natural waters. These waters are ... -
Distinct Mechanisms of Endocrine Disruption of DDT-related Pesticides toward ER a and ERR y
(Environmental Toxicology and Chemistry, 2012)Dichlorodiphenyltrichloroethane (DDT) is ubiquitous in the environment, and the exposure to DDT and its related pesticides has long been linked to endocrine disruption. The mechanism of endocrine disruption toward targeted ... -
Environmental Analytical Chemistry
(Eolss Publishers, 2012)Environmental analytical chemistry has evolved from the traditional analytical chemistry to a well-established discipline and a profession attractive to a diverse group of environmental scientists / engineers, chemists, ...
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