Aerobic biodegradation potential of endocrine‐disrupting chemicals in surface‐water sediment at Rocky Mountain National Park, USA

Bradley, Paul M.; Battaglin, William A.; Iwanowicz, Luke R.; Clark, Jimmy M.; Journey, Celeste A.

doi:10.1002/etc.3266

Cited by 17 publications

(19 citation statements)

References 93 publications

(154 reference statements)

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“…Environ Toxicol Chem 36, 2017 3051 biodegradable than the natural estrogens E1 and E2 [85,[109][110][111][112][113]. Significant aerobic biodegradation of EE2 has been reported previously in wastewater [71,114], wastewater-impacted streams sediments [70,72], and groundwater [113], and in remote locations at Rocky Mountain National Park [89] and was observed in the present study in Cedar Creek and Muck Swamp sediment treatments ( Figure 6). However, aerobic mineralization of 14 C-EE2 was detected in only 2 of 5 Congaree River microcosms, indicating limited biodegradability and increased environmental persistence in this system.…”

Section: Bioactive Contaminants In Congaree National Parksupporting

confidence: 83%

“…Water and sediment were collected from 16 surface‐water sites distributed throughout the park to cover primary stream inflows (Congaree River, Cedar Creek, Dry Creek, Myers Creek, Tom's Creek, Wateree River) at respective upstream park boundaries and a cross section of the principal hydrologic features (tributaries, wetland, oxbow lakes; Figure and Table , and Supplemental Data Figure S3 and Table S1). Surface‐water samples were analyzed at the US Geological Survey (USGS) National Water Quality Laboratory in Denver (CO, USA) for 199 targeted organic analytes, including pharmaceuticals (110 total analytes; 107 pharmaceuticals, degradates, and metabolites) , hormones (20 analytes) , and organic waste indicator compounds (69 analytes) , as described previously . Bed sediment samples were analyzed at the National Water Quality Laboratory for concentrations of hormones (20 analytes) and organic waste indicator (61 analytes) compounds, as described previously .…”

Section: Methodsmentioning

confidence: 99%

“…The potential for in situ biodegradation of bioactive contaminants at Congaree National Park was investigated in surface‐water sediment as described previously using aqueous solutions of 14 C‐labeled metformin (100 µCi/µmole) and 14 C‐ring‐labeled sulfamethoxazole (77 µCi/µmole), 4‐nonylphenol (7.5 µCi/µmole), triclocarban (30 µCi/µmole), bisphenol A (BPA; 200 µCi/µmole), 17α‐ethinylestradiol (EE2; 55 µCi/µmole), 17β‐estradiol (E2; 55 µCi/µmole), and estrone (E1; 54 µCi/µmole), each with radiochemical purities greater than 98% (American Radiolabeled Chemicals; Moravek Biochemicals). The metformin was 14 C‐biguanide labeled, while the sulfamethoxazole, 4‐nonylphenol, triclocarban, and BPA were uniformly 14 C‐phenyl ring‐labeled.…”

Section: Methodsmentioning

confidence: 99%

“…The potential for in situ biodegradation of bioactive contaminants at Congaree National Park was investigated in surface-water sediment as described previously [40] using aqueous solutions of 14 C-labeled metformin (100 mCi/mmole) Table 1. Moravek Biochemicals).…”

Section: Contaminant Biodegradation Assessmentmentioning

confidence: 99%

“…Initial rates of aerobic mineralization of the endogenous estrogens E2 and E1 were comparable and generally among the highest observed of any of the model 14 C-substrates for a given site. As naturally occurring estrogens, efficient aerobic biodegradation of E1 and E2 is expected and has been demonstrated in sewage sludge and wastewater (for review, see Hamid and Eskicioglu [85], Lee and Liu [86], and Silva et al [87]), wastewaterimpacted sediment [72,88], biofilms [71], and surface-water sediment from remote locations in Rocky Mountain National Park (CO, USA) [89]. The initial rate of aerobic BPA mineralization to 14 CO 2 in the present study was comparable to that of E1 and E2.…”

Section: Biodegradation Potential Of Bioactive Contaminants At Congarmentioning

confidence: 99%

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Widespread occurrence and potential for biodegradation of bioactive contaminants in Congaree National Park, USA

Bradley

Battaglin

Clark

et al. 2017

Enviro Toxic and Chemistry

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Organic contaminants with designed molecular bioactivity, such as pesticides and pharmaceuticals, originate from human and agricultural sources, occur frequently in surface waters, and threaten the structure and function of aquatic and terrestrial ecosystems. Congaree National Park in South Carolina (USA) is a vulnerable park unit due to its location downstream of multiple urban and agricultural contaminant sources and its hydrologic setting, being composed almost entirely of floodplain and aquatic environments. Seventy-two water and sediment samples were collected from 16 sites in Congaree National Park during 2013 to 2015, and analyzed for 199 and 81 targeted organic contaminants, respectively. More than half of these water and sediment analytes were not detected or potentially had natural sources. Pharmaceutical contaminants were detected (49 total) frequently in water throughout Congaree National Park, with higher detection frequencies and concentrations at Congaree and Wateree River sites, downstream from major urban areas. Forty-seven organic wastewater indicator chemicals were detected in water, and 36 were detected in sediment, of which approximately half are distinctly anthropogenic. Endogenous sterols and hormones, which may originate from humans or wildlife, were detected in water and sediment samples throughout Congaree National Park, but synthetic hormones were detected only once, suggesting a comparatively low risk of adverse impacts. Assessment of the biodegradation potentials of 8 C-radiolabeled model contaminants indicated poor potentials for some contaminants, particularly under anaerobic sediments conditions. Environ Toxicol Chem 2017;36:3045-3056. Published 2017 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.

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Section: Bioactive Contaminants In Congaree National Parksupporting

confidence: 83%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Contaminant Biodegradation Assessmentmentioning

confidence: 99%

Section: Biodegradation Potential Of Bioactive Contaminants At Congarmentioning

confidence: 99%

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Widespread occurrence and potential for biodegradation of bioactive contaminants in Congaree National Park, USA

Bradley

Battaglin

Clark

et al. 2017

Enviro Toxic and Chemistry

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New Trends in the Analysis of Endocrine Disrupting Compounds in Environmental Samples

Salgueiro‐González

Muniategui-Lorenzo

López-Mahı́a

et al. 2017

Encyclopedia of Analytical Chemistry

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The main aim of this article is to provide an overview of the evolution and trends in the determination of endocrine disrupting compounds (EDCs) in environmental matrices, such as water, sediment, and biota samples. These chemical substances are capable of altering the hormonal system of humans and wildlife at low concentrations, and therefore, continuous investigations based on their occurrence, distribution, and impact are needed to preserve the environment and protect public safety. In order to highlight the gradual change related to the strategies used for EDC determination observed in the past years, this article is divided into four sections: firstly, a brief introduction about the remarkable and emerging EDCs and also the corresponding environmental legislation is included. Then, the state of the determination of EDCs in the environment and the analytical methodologies employed for the analysis of environmental matrices are discussed, with special mention to the new trends in analytical techniques. Finally, future trends required to obtain more data about this topic and control EDCs pollution in the environment are also commented.

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Marmots do not drink coffee: Human urine contributions to the nitrogen budget of a popular national park destination

et al. 2023

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Reactive nitrogen (Nr) concentrations are higher than expected for mountain lakes in Rocky Mountain National Park, and for many years, high Nr concentrations have been attributed to atmospheric Nr deposition from regional and more distant emission sources, including combustion of fossil fuels and agricultural activities. Here, we estimated the contribution from a very local source, that of human urine, related to intensive use by visitors in Loch Vale Watershed (LVWS). Not only does urine convey hormones, pharmaceuticals, antibiotic‐resistant bacteria, and antibiotic‐resistant genes to the environment, but it also contributes Nr, which contributes to loss of biodiversity and eutrophication. Using caffeine as a specific marker for human urine, we compared the calculated maximum potential input of urine with that from wet atmospheric Nr deposition. The maximum potential input is a worst‐case scenario. Nearly 30,000 and 45,000 people hiked the 4.0 km to the Loch, the lowest lake in LVWS, in June–September 2019 and 2020, respectively. Informal trails and informal latrine sites were mapped, and the contribution of human urine was calculated based on several assumptions, including that each visitor voided their bladder on the ground once per visit somewhere in Loch Vale. The resulting Nr input from urine in Loch Vale for the summer months of June through September was 0.02 kg Nr ha−1, and prorated to a full year, the 2019 potential contribution of human waste was 0.06 kg ha−1 year−1. These values are compared with June–September 1.2 kg Nr ha−1 from wet atmospheric deposition or annual measured 2019 deposition of 2.5 kg Nr ha−1 year−1, to indicate a contribution of 2% Nr to the waters of Loch Vale from local human urine. Most Nr in this alpine and subalpine watershed is still attributable to emissions and subsequent wet atmospheric deposition, but a 2% contribution from human waste is not insignificant. In the very broadest sense, our results document an ecological disturbance from an unprecedented level of human activity in a protected and designated wilderness area. Local solutions to this local problem could include greater outreach to visitors of public lands about the consequences of their activities and installation of latrines.

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Aerobic biodegradation potential of endocrine‐disrupting chemicals in surface‐water sediment at Rocky Mountain National Park, USA

Cited by 17 publications

References 93 publications

Widespread occurrence and potential for biodegradation of bioactive contaminants in Congaree National Park, USA

Widespread occurrence and potential for biodegradation of bioactive contaminants in Congaree National Park, USA

New Trends in the Analysis of Endocrine Disrupting Compounds in Environmental Samples

Marmots do not drink coffee: Human urine contributions to the nitrogen budget of a popular national park destination

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