Results 1 to 10 of about 453,640 (246)

A modified TOP assay to detect per- and polyfluoroalkyl substances in aqueous film-forming foams (AFFF) and soil

Frontiers in Chemistry, 2023
Total oxidisable precursor (TOP) assay can oxidise some per- and polyfluoroalkyl substances (PFASs) and their precursors, most of which cannot be quantitatively detected so far, and convert them to detectable PFASs, such as perfluoroalkyl acids (PFAAs ...
Md. Al Amin, Md. Al Amin, Yunlong Luo, Yunlong Luo, Feng Shi, Feng Shi, Linbo Yu, Linbo Yu, Yanju Liu, Yanju Liu, Annette Nolan, Olalekan Simon Awoyemi, Mallavarapu Megharaj, Mallavarapu Megharaj, Ravi Naidu, Ravi Naidu, Cheng Fang, Cheng Fang   +17 more
doaj   +1 more source

The Effect of Heterogeneity on the Distribution and Treatment of PFAS in a Complex Geologic Environment

Frontiers in Environmental Chemistry, 2021
Per-and polyfluoroalkyl substances (PFAS) have been identified as emerging contaminants of concern in the environment in a wide variety of media including groundwater.
Rick McGregor, Leticia Benevenuto
doaj   +1 more source

Spatiotemporal drought analysis by the standardized precipitation index (SPI) and standardized precipitation evapotranspiration index (SPEI) in Sichuan Province, China

Scientific Reports, 2021
Drought refers to a meteorological disaster that causes insufficient soil moisture and damage to crop water balance due to long-term lack of precipitation.
Changhong Liu, Cuiping Yang, Qi Yang, Jiao Wang   +3 more
doaj   +1 more source

Separation and Lithological Mapping of PFAS Mixtures in the Vadose Zone at a Contaminated Site

Frontiers in Water, 2020
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are persistent organic contaminants of concern to human and environmental health. Several literature reviews and laboratory column experiments have been conducted to determine the transport parameters ...
Dawit N. Bekele, Dawit N. Bekele, Yanju Liu, Yanju Liu, Mark Donaghey, Anthony Umeh, Anthony Umeh, Chamila S. V. Arachchige, Sreenivasulu Chadalavada, Sreenivasulu Chadalavada, Ravi Naidu, Ravi Naidu   +11 more
doaj   +1 more source

Evaluating PFHxS toxicity to invertebrates and microbial processes in soil

Environmental Chemistry and Ecotoxicology, 2023
Per- and poly-fluoroalkyl substances (PFAS) have raised global concerns regarding soil contamination and the subsequent adverse effects on soil organisms.
Samarasinghe Vidane Arachchige Chamila Samarasinghe, Md Mezbaul Bahar, Fangjie Qi, Kaihong Yan, Yanju Liu, Ravi Naidu   +5 more
doaj   +1 more source

Bioavailability of arsenic, cadmium, lead and mercury as measured by intestinal permeability

Scientific Reports, 2021
In this study, the intestinal permeability of metal(loid)s (MLs) such as arsenic (As), cadmium (Cd), lead (Pb) and mercury (Hg) was examined, as influenced by gut microbes and chelating agents using an in vitro gastrointestinal/Caco-2 cell intestinal ...
Shiv Bolan, Balaji Seshadri, Simon Keely, Anitha Kunhikrishnan, Jessica Bruce, Ian Grainge, Nicholas J. Talley, Ravi Naidu   +7 more
doaj   +1 more source

Overview of leaching remediation of heavy metal contamination in soil [PDF]

E3S Web of Conferences, 2021
The remediation methods of heavy metal contaminated soil can be divided into bioremediation, physical remediation and chemical remediation. Chemical remediation mainly includes soil leaching and chemical curing.
Shuang Cui, Qing Han, Tianyi Zhang
doaj   +1 more source

Antimonate sequestration from aqueous solution using zirconium, iron and zirconium-iron modified biochars

Scientific Reports, 2021
Antimony (Sb) is increasingly being recognized as an important contaminant due to its various industrial applications and mining operations. Environmental remediation approaches for Sb are still lacking, as is the understanding of Sb environmental ...
Md. Aminur Rahman, Mohammad Mahmudur Rahman, Md. Mezbaul Bahar, Peter Sanderson, Dane Lamb   +4 more
doaj   +1 more source

Raman imaging for the analysis of silicone microplastics and nanoplastics released from a kitchen sealant

Frontiers in Chemistry, 2023
Plastic products are used ubiquitously and can potentially release microplastics and nanoplastics into the environment, for example, products such as the silicone sealant used in kitchens.
Cheng Fang, Cheng Fang, Yunlong Luo, Ravi Naidu, Ravi Naidu   +4 more
doaj   +1 more source

Rapid In-Field Approaches for Delineating VOC in Both Soil Vapour and Groundwater for Vapour Intrusion Assessment

Frontiers in Environmental Science, 2021
Traditional contaminated site characterisation approaches are time-consuming, labour-intensive, and demand a high level of expertise. This case study provides a rapid field-based solution to investigating a VOC contaminated site and its vapour incursion ...
Liang Wang, Liang Wang, Ying Cheng, Ying Cheng, Ravi Naidu, Ravi Naidu, Peter Gell, Mark Bowman   +7 more
doaj   +1 more source