کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4421720 | 1308520 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Toxicity and bioconcentration evaluation of RDX and HMX using sheepshead minnows in water exposures
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Toxicity and bioconcentration evaluation of RDX and HMX using sheepshead minnows in water exposures Toxicity and bioconcentration evaluation of RDX and HMX using sheepshead minnows in water exposures](/preview/png/4421720.png)
چکیده انگلیسی
Lethal effects of the explosives RDX and HMX were assessed using ten-day water exposures to juvenile sheepshead minnows (Cyprinodon variegatus). For RDX, maximum mortality occurred during the first two days of exposure with a 10-d median lethal concentration (LC50) of 9.9 mg Lâ1. The RDX 10-d median lethal residue (LR50) was 9.6 mg kgâ1 (34.9 μmol kgâ1) wet weight (ww), the first RDX critical body residue reported for fish. Previous investigations reported that RDX body residues in marine amphipods up to 96 μmol kgâ1 ww and in marine mussels up to 86 μmol kgâ1 ww failed to result in significant mortality. The highest HMX concentration tested, corresponding to its apparent solubility limit in seawater (2.0 mg Lâ1), and the associated mean body residue (3 mg kgâ1 or 14 μmol kgâ1 ww) resulted in no significant mortality for exposed minnows. The mean 10-d bioconcentration factors for RDX (0.6-0.9 L kgâ1) and HMX (0.3-1.6 L kgâ1) were typically lower than 1, reflecting the low bioaccumulative potential for these compounds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 73, Issue 7, October 2010, Pages 1653-1657
Journal: Ecotoxicology and Environmental Safety - Volume 73, Issue 7, October 2010, Pages 1653-1657
نویسندگان
Guilherme R. Lotufo, Alfreda B. Gibson, J. Leslie Yoo,