Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 67, Issue 25, Pages 6930-6939Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.9b01656
Keywords
organic microcontaminants; plant uptake; reclaimed water reuse; health risk assessment; LC-MS target/suspect analysis
Funding
- H2020-MSCA-2016 [GA: 734560]
- University of Almeria
- PSA-CIEMAT
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In many regions, reuse of reclaimed water (RW) is a necessity for irrigation. The presence of organic microcontaminants (OMCs) in RW and their translocation to plants may represent a risk of human exposure. Nevertheless, information available about real field crops is scarce and focused on a limited number of compounds. The novelty of this work relies on the application of a wider-scope analytical approach based on a multianalyte target analysis (60 compounds) and a suspect screening (>1300 compounds). This methodology was applied to real field-grown tomato crops irrigated with RW. The study revealed the presence of 17 OMCs in leaves (0.04-32 ng g(-1)) and 8 in fruits (0.01-1.1 ng g(-1) of them not reported before in real field samples. A health-risk assessment, based on the toxicological threshold concern (TTC) concept, showed that RW irrigation applied under the conditions given does not pose any threat to humans.
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