Abstract
Chromium (Cr) pollution caused by wastewater from tanneries is a worldwide environmental problem. To develop a countermeasure, we performed a comprehensive study using Hazaribagh, the tannery area in Dhaka City, Bangladesh, as a model. Our environmental monitoring indicated that the soluble form of Cr, but not barium or arsenic, in Buriganga River is derived from Hazaribagh. Our chemical analysis next showed that Cr, the primary pollutant in canal water at Hazaribagh, consisted of ≤0.7 μM hexavalent Cr [Cr(VI)] and ≤1705 μM trivalent Cr [Cr(III)]. Our biological study then showed that coexposure to Cr(VI) and Cr(III) at possible ratios in canal water at Hazaribagh synergistically promotes transforming activity of human non-tumorigenic HaCaT keratinocytes with activated MEK/ERK and AKT. Our environmental engineering study finally indicated that a magnesium and iron-based hydrotalcite-like compound (MF-HT), our original depurative, can maximally adsorb 9.0 mg/g Cr(VI) and 1041 mg/g Cr(III). Our results suggested the importance of removal of Cr(III) as well as Cr(VI) by showing that Cr(III), which is generally recognized as a chemical with low toxicity, synergistically promoted carcinogenicity of a low level of Cr(VI). Therefore, we propose the use of our original high-efficient and low-cost depurative as a countermeasure to address the worldwide problem of environmental Cr pollution.
| Original language | English |
|---|---|
| Pages (from-to) | 667-675 |
| Number of pages | 9 |
| Journal | Chemosphere |
| Volume | 201 |
| DOIs | |
| Publication status | Published - 2018 Jun 1 |
| Externally published | Yes |
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Keywords
- Carcinogenic toxicity
- Chromium
- Depurative
- Tannery waste
- Water pollution
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Chemistry(all)
- Pollution
- Health, Toxicology and Mutagenesis
Cite this
A comprehensive study including monitoring, assessment of health effects and development of a remediation method for chromium pollution. / Yoshinaga, Masafumi; Ninomiya, Hiromasa; Al Hossain, M. M.Aeorangajeb; Sudo, Makoto; Akhand, Anwarul Azim; Ahsan, Nazmul; Alim, Md Abdul; Khalequzzaman, Md; Iida, Machiko; Yajima, Ichiro; Ohgami, Nobutaka; Kato, Masashi.
In: Chemosphere, Vol. 201, 01.06.2018, p. 667-675.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A comprehensive study including monitoring, assessment of health effects and development of a remediation method for chromium pollution
AU - Yoshinaga, Masafumi
AU - Ninomiya, Hiromasa
AU - Al Hossain, M. M.Aeorangajeb
AU - Sudo, Makoto
AU - Akhand, Anwarul Azim
AU - Ahsan, Nazmul
AU - Alim, Md Abdul
AU - Khalequzzaman, Md
AU - Iida, Machiko
AU - Yajima, Ichiro
AU - Ohgami, Nobutaka
AU - Kato, Masashi
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Chromium (Cr) pollution caused by wastewater from tanneries is a worldwide environmental problem. To develop a countermeasure, we performed a comprehensive study using Hazaribagh, the tannery area in Dhaka City, Bangladesh, as a model. Our environmental monitoring indicated that the soluble form of Cr, but not barium or arsenic, in Buriganga River is derived from Hazaribagh. Our chemical analysis next showed that Cr, the primary pollutant in canal water at Hazaribagh, consisted of ≤0.7 μM hexavalent Cr [Cr(VI)] and ≤1705 μM trivalent Cr [Cr(III)]. Our biological study then showed that coexposure to Cr(VI) and Cr(III) at possible ratios in canal water at Hazaribagh synergistically promotes transforming activity of human non-tumorigenic HaCaT keratinocytes with activated MEK/ERK and AKT. Our environmental engineering study finally indicated that a magnesium and iron-based hydrotalcite-like compound (MF-HT), our original depurative, can maximally adsorb 9.0 mg/g Cr(VI) and 1041 mg/g Cr(III). Our results suggested the importance of removal of Cr(III) as well as Cr(VI) by showing that Cr(III), which is generally recognized as a chemical with low toxicity, synergistically promoted carcinogenicity of a low level of Cr(VI). Therefore, we propose the use of our original high-efficient and low-cost depurative as a countermeasure to address the worldwide problem of environmental Cr pollution.
AB - Chromium (Cr) pollution caused by wastewater from tanneries is a worldwide environmental problem. To develop a countermeasure, we performed a comprehensive study using Hazaribagh, the tannery area in Dhaka City, Bangladesh, as a model. Our environmental monitoring indicated that the soluble form of Cr, but not barium or arsenic, in Buriganga River is derived from Hazaribagh. Our chemical analysis next showed that Cr, the primary pollutant in canal water at Hazaribagh, consisted of ≤0.7 μM hexavalent Cr [Cr(VI)] and ≤1705 μM trivalent Cr [Cr(III)]. Our biological study then showed that coexposure to Cr(VI) and Cr(III) at possible ratios in canal water at Hazaribagh synergistically promotes transforming activity of human non-tumorigenic HaCaT keratinocytes with activated MEK/ERK and AKT. Our environmental engineering study finally indicated that a magnesium and iron-based hydrotalcite-like compound (MF-HT), our original depurative, can maximally adsorb 9.0 mg/g Cr(VI) and 1041 mg/g Cr(III). Our results suggested the importance of removal of Cr(III) as well as Cr(VI) by showing that Cr(III), which is generally recognized as a chemical with low toxicity, synergistically promoted carcinogenicity of a low level of Cr(VI). Therefore, we propose the use of our original high-efficient and low-cost depurative as a countermeasure to address the worldwide problem of environmental Cr pollution.
KW - Carcinogenic toxicity
KW - Chromium
KW - Depurative
KW - Tannery waste
KW - Water pollution
UR - http://www.scopus.com/inward/record.url?scp=85043533506&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85043533506&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2018.03.026
DO - 10.1016/j.chemosphere.2018.03.026
M3 - Article
VL - 201
SP - 667
EP - 675
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
ER -