Jump to main content
Jump to site search

Issue 19, 2015
Previous Article Next Article

Atmospheric emissions of toxic elements (As, Cd, Hg, and Pb) from brick making plants in China

Author affiliations

Abstract

A multiple-year emission inventory of As, Cd, Hg, and Pb from brick making plants in China has been first established for the period 2008–2013 by employing the available emission factors and annual activity data. The atmospheric emissions of toxic elements were determined by a bottom-up methodology with the provincial-level statistical data on raw materials (coal, coal gangue, coal ash and clay) consumption and the reasonable emission factors of toxic elements. The provincial average concentrations of toxic elements in different raw materials were elaborately reviewed and calculated with multiple statistical mean calculation methods. Simulation experiments were performed to determine the emission factors of toxic elements from different raw materials. The results show that the total national emissions of As, Cd, Hg, and Pb from brick-making plants have been increasing to 644.05 t, 94.96 t, 9.71 t, and 3269.79 t in 2013, at an annual average growth rate of 22.8%, 25.6%, 19.2%, and 24.6% due to the lack of atmospheric pollutant control devices, respectively, which are higher than that of emissions from coal-fired plants (except for Hg) in China. Coal ash is the main source of As, Cd, and Pb emissions, accounting for 87.9%, 89.5%, and 88.4% of the respective total emissions due to the high consumption with high concentration and emission factor of TE. Shandong, Henan, Hubei, Hunan, Sichuan and Guangxi are the largest emitting provinces. Advanced technologies and integrated countermeasures to control toxic elements from brick making plants are urgently needed.

Graphical abstract: Atmospheric emissions of toxic elements (As, Cd, Hg, and Pb) from brick making plants in China

Back to tab navigation

Supplementary files

Article information


Submitted
13 Nov 2014
Accepted
23 Jan 2015
First published
23 Jan 2015

RSC Adv., 2015,5, 14497-14505
Article type
Paper

Atmospheric emissions of toxic elements (As, Cd, Hg, and Pb) from brick making plants in China

C. Zhou, G. Liu, T. Fang, P. K. S. Lam and J. C. W. Lam, RSC Adv., 2015, 5, 14497
DOI: 10.1039/C4RA14443K

Social activity

Search articles by author

Spotlight

Advertisements