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Copyright of Metal Working (1674-165X) is the property of Metal Working Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Forest Products Industry is the property of China Forest Products Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to investigate the concentrations and food safety of 18 trace elements in rice-crab（Eriocheir sinensis）from northeastern China（including Heilongjiang, Jilin and Liaoning Provinces），a total of 56 crab samples were collected from main rice-crab aquiculture area in September 2017. The concentrations of 18 trace elements were detected by inductively coupled plasma-mass spectrometry（ICPMS）, and the pollution levels and potential health risks were estimated by single-factor pollution index（Pi）, provisional tolerated weekly intake（PTWI）and target hazard quotient（THQ）, respectively. Results showed that contents of most trace element in crab were much more higher than in freshwater fish obtained from pond. Significant differences in ten trace element including Cr, Cd and U were found in sam- ples between Jilin Province and the other two regions（P<0.05）. The contents of Cu, Pb, Cd and Cr in all the samples were not exceeded na- tional standards. The adult weekly intake（AWI）of analyzed five heavy elements（including Cu, Zn, Pb, Cd and Cr）were lower than PTWI recommended by JECFA. The estimated daily intake（EDI）of the five heavy elements and four toxic trace elements（including Ba, U, Ag and Be）were lower than the reference dose（RfD）recommended by USEPA. All results indicated that trace elements intake form the rice crab had no significant health risk to the health risks. The trace elements of Ba, Pb and Cd were the main risk elements, which had high contribution rate to HI. [ABSTRACT FROM AUTHOR]

Copyright of South China Fisheries Science is the property of South China Fisheries Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)