Survival and reproduction tests using springtails reveal weathered petroleum hydrocarbon soil toxicity in boreal ecozone

被引：0

作者：

Roy, Prama ^{[1
]}

Rutter, Allison ^{[1
]}

Gainer, Amy ^{[2
]}

Haack, Elizabeth ^{[3
]}

Zeeb, Barbara ^{[4
]}

机构：

[1] School of Environmental Studies, Queen’s University, Kingston, K7L 3N6, ON

[2] Clear-Site Solutions (Formerly With Advisian/Worley Canada Services), 9807 83 Ave, Edmonton, AB

[3] Ecometrix Incorporated, 6800 Campobello Road, Mississauga, L5N 2L8, ON

[4] Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, K7K 7B4, ON

来源：

Environmental Science and Pollution Research | 2024年 / 31卷 / 47期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Bioavailability; Boreal; Collembola; Ecotoxicology; Petroleum hydrocarbons; Soil contaminants;

D O I：

10.1007/s11356-024-35012-z

中图分类号：

学科分类号：

摘要：

Survival and reproduction tests were conducted using two native springtail (subclass: Collembola) species to determine the toxicity of a fine-grained (< 0.005 – 0.425 mm) soil from an industrial site located in the Canadian boreal ecozone. Accidental petroleum hydrocarbon (PHC) release continuously occurred at this site until 1998, resulting in a total hydrocarbon concentration of 12,800 mg/kg (soil dry weight). Subfractions of the PHC-contaminated soil were characterized using Canadian Council of Ministers of the Environment Fractions, which are based on effective carbon numbers (nC). Fraction 2 (> nC10 to nC16) was measured at 8400 mg/kg and Fraction 3 (> nC16 to nC34) at 4250 mg/kg in the contaminated soil. Age-synchronized colonies of Folsomia candida and Proisotoma minuta were subject to 0%, 25%, 50%, 75%, and 100% relative contamination mixtures of the PHC-contaminated and background site soil (< 100 mg/kg total PHCs) for 28 and 21 days, respectively. Survival and reproduction decreased significantly (Kruskal–Wallis Tests: p < 0.05, df = 4.0) in treatments of the contaminated site soil compared to the background soil. In both species, the most significant decline in survival and reproduction occurred between the 0% and 25% contaminated soil. Toxicity responses in the two springtails were ascribed to the standardized test design, short lifespans, and high fecundity in both species. This study showed that 25 + years of soil weathering has not eliminated the toxicity of fine-grained PHC-contaminated soil on two native terrestrial springtail species. Adverse effects to springtail health were attributed to exposure to soils dominated by genotoxic PHC Fraction 2 compounds and slow weathering processes due to the cold climate at the site. © Crown 2024.

引用

页码：57920 / 57932

页数：12