NDLI: Accumulation of contaminants of emerging concern in food crops-part 2: Plant distribution.

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Accumulation of contaminants of emerging concern in food crops-part 2: Plant distribution.

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Accumulation of contaminants of emerging concern in food crops-part 2: Plant distribution.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Hyland, Katherine C. Blaine, Andrea C. Higgins, Christopher P.
Description	Country affiliation: United States Author Affiliation: Hyland KC ( Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado, USA.); Blaine AC ( Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado, USA.); Higgins CP ( Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado, USA.)
Abstract	Arid agricultural regions often turn to using treated wastewater (reclaimed water) to irrigate food crops. Concerns arise, however, when considering the potential for persistent contaminants of emerging concern to accumulate into plants intended for human consumption. The present study examined the accumulation of a suite of 9 contaminants of emerging concern into 2 representative food crops, lettuce and strawberry, following uptake via the roots and subsequent distribution to other plant tissues. Calculating accumulation metrics (concentration factors) allowed for comparison of the compartmental affinity of each chemical for each plant tissue compartment. The root concentration factor was found to exhibit a positive linear correlation with the pH-adjusted octanol-water partition coefficient (DOW ) for the target contaminants of emerging concern. Coupled with the concentration-dependent accumulation observed in the roots, this result implies that accumulation of these contaminants of emerging concern into plant roots is driven by passive partitioning. Of the contaminants of emerging concern examined, nonionizable contaminants, such as triclocarban, carbamazepine, and organophosphate flame retardants displayed the greatest potential for translocation from the roots to above-ground plant compartments. In particular, the organophosphate flame retardants displayed increasing affinity for shoots and fruits with decreasing size/octanol-water partition coefficient (KOW ). Cationic diphenhydramine and anionic sulfamethoxazole, once transported to the shoots of the strawberry plant, demonstrated the greatest potential of the contaminants examined to be then carried to the edible fruit portion.
File Format	HTM / HTML
ISSN	07307268
Issue Number	10
Volume Number	34
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2015-10-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Research Support, U.s. Gov't, Non-p.h.s. Fragaria Fruit Discipline Environmental Health Humans Discipline Toxicology Waste Water Chromatography, High Pressure Liquid Metabolism Journal Article Tandem Mass Spectrometry Chemistry Lettuce Plant Roots Analysis Discipline Chemistry Crops, Agricultural Flame Retardants Plant Dispersal
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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