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Elevated CO2 levels affects the concentrations of copper and cadmium in crops grown in soil contaminated with heavy metals under fully open-air field conditions.
Environ Sci Technol. 2011 Aug 15; 45(16):6997-7003.ES

Abstract

Elevated CO(2) levels and the increase in heavy metals in soils through pollution are serious problems worldwide. Whether elevated CO(2) levels will affect plants grown in heavy-metal-polluted soil and thereby influence food quality and safety is not clear. Using a free-air CO(2) enrichment (FACE) system, we investigated the impacts of elevated atmospheric CO(2) on the concentrations of copper (Cu) or cadmium (Cd) in rice and wheat grown in soil with different concentrations of the metals in the soil. In the two-year study, elevated CO(2) levels led to lower Cu concentrations and higher Cd concentrations in shoots and grain of both rice and wheat grown in the respective contaminated soil. Elevated CO(2) levels slightly but significantly lowered the pH of the soil and led to changes in Cu and Cd fractionation in the soil. Our study indicates that elevated CO(2) alters the distribution of contaminant elements in soil and plants, thereby probably affecting food quality and safety.

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China. hyguo@nju.edu.cnNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21770376

Citation

Guo, Hongyan, et al. "Elevated CO2 Levels Affects the Concentrations of Copper and Cadmium in Crops Grown in Soil Contaminated With Heavy Metals Under Fully Open-air Field Conditions." Environmental Science & Technology, vol. 45, no. 16, 2011, pp. 6997-7003.
Guo H, Zhu J, Zhou H, et al. Elevated CO2 levels affects the concentrations of copper and cadmium in crops grown in soil contaminated with heavy metals under fully open-air field conditions. Environ Sci Technol. 2011;45(16):6997-7003.
Guo, H., Zhu, J., Zhou, H., Sun, Y., Yin, Y., Pei, D., Ji, R., Wu, J., & Wang, X. (2011). Elevated CO2 levels affects the concentrations of copper and cadmium in crops grown in soil contaminated with heavy metals under fully open-air field conditions. Environmental Science & Technology, 45(16), 6997-7003. https://doi.org/10.1021/es2001584
Guo H, et al. Elevated CO2 Levels Affects the Concentrations of Copper and Cadmium in Crops Grown in Soil Contaminated With Heavy Metals Under Fully Open-air Field Conditions. Environ Sci Technol. 2011 Aug 15;45(16):6997-7003. PubMed PMID: 21770376.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Elevated CO2 levels affects the concentrations of copper and cadmium in crops grown in soil contaminated with heavy metals under fully open-air field conditions. AU - Guo,Hongyan, AU - Zhu,Jianguo, AU - Zhou,Hui, AU - Sun,Yuanyuan, AU - Yin,Ying, AU - Pei,Daping, AU - Ji,Rong, AU - Wu,Jichun, AU - Wang,Xiaorong, Y1 - 2011/07/19/ PY - 2011/7/21/entrez PY - 2011/7/21/pubmed PY - 2011/12/13/medline SP - 6997 EP - 7003 JF - Environmental science & technology JO - Environ Sci Technol VL - 45 IS - 16 N2 - Elevated CO(2) levels and the increase in heavy metals in soils through pollution are serious problems worldwide. Whether elevated CO(2) levels will affect plants grown in heavy-metal-polluted soil and thereby influence food quality and safety is not clear. Using a free-air CO(2) enrichment (FACE) system, we investigated the impacts of elevated atmospheric CO(2) on the concentrations of copper (Cu) or cadmium (Cd) in rice and wheat grown in soil with different concentrations of the metals in the soil. In the two-year study, elevated CO(2) levels led to lower Cu concentrations and higher Cd concentrations in shoots and grain of both rice and wheat grown in the respective contaminated soil. Elevated CO(2) levels slightly but significantly lowered the pH of the soil and led to changes in Cu and Cd fractionation in the soil. Our study indicates that elevated CO(2) alters the distribution of contaminant elements in soil and plants, thereby probably affecting food quality and safety. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/21770376/Elevated_CO2_levels_affects_the_concentrations_of_copper_and_cadmium_in_crops_grown_in_soil_contaminated_with_heavy_metals_under_fully_open_air_field_conditions_ L2 - https://doi.org/10.1021/es2001584 DB - PRIME DP - Unbound Medicine ER -