Risk assessment of human exposure to heavy metals, polycyclic aromatic hydrocarbons, and radionuclides in oil-based drilling cutting residues used for roadbed materials in Chongqing, China

Oil-based drilling cutting residues (OBDCRs) contain many kinds of carcinogenic contaminants, such as heavy metal elements, polycyclic aromatic hydrocarbons (PAHs), and natural radioactive materials (NORMs), which are great risks for the environment and human health. This study investigated the chem...

Full description

Saved in:
Bibliographic Details
Published in:Environmental science and pollution research international Vol. 28; no. 35; pp. 48171 - 48183
Main Authors: Xiong, Deming, Wang, Chaoqiang
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2021
Springer Nature B.V
Subjects:
absorbed dose
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Benzopyrene
benzopyrenes
carcinogenicity
Carcinogens
Chemical composition
China
Contaminants
Copper
Dosage
Drilling
durability
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Health risk assessment
Health risks
Heavy metals
human health
humans
Liability
Norms
petroleum
Petroleum hydrocarbons
pollution
Polycyclic aromatic hydrocarbons
Radioactive materials
Radioisotopes
Research Article
Residues
risk
Risk assessment
Road beds
Service life
Solid wastes
Waste Water Technology
Water Management
Water Pollution Control
Chongqing China
China
Radionuclides
Polycyclic aromatic hydrocarbons
Oil-based drilling cutting residues
Risk assessment
Heavy metals
Roadbed materials
ISSN:0944-1344, 1614-7499, 1614-7499
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Oil-based drilling cutting residues (OBDCRs) contain many kinds of carcinogenic contaminants, such as heavy metal elements, polycyclic aromatic hydrocarbons (PAHs), and natural radioactive materials (NORMs), which are great risks for the environment and human health. This study investigated the chemical composition, the radioactive strength, the heavy metal contents, and the org matter contents in OBDCRs and estimated the health risks due to exposure to heavy metals, PAHs, and radionuclides in OBDCRs used for roadbed materials. From the measurements, it was found that the content values of benzopyrene (a), diphenylanthracene (a, h), and petroleum hydrocarbons exceeded the standard limit. The content values of Cu, Zn, As, and Ni were higher than 50% of the standard limit. If OBDCRs were directly used to make roadbed materials, the total carcinogenic risk values (CR n ) of As, benzoanthracene (a), benzopyrene (a), and dibenzoanthracene (a, h) were all higher than 10 −6 . The average absorbed dose rate was higher than 80 nGy/h. There were greater risks of carcinogenic environment and potential harms to human health. To reduce the health risks, it is necessary to consider the strategy of the utilization of OBDCRs, the working time, and the service life of the recycled OBDCRs and establish a legal standard and liability for the utilization of OBDCRs as solid waste resources.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:0944-1344
1614-7499
1614-7499
DOI:10.1007/s11356-021-13871-0