Toward Identifying the Next Generation of Superfund and Hazardous Waste Site Contaminants

Ela, Wendell P.; Sedlak, David L.; Barlaz, Morton A.; Henry, Heather F.; Muir, Derek C.G.; Swackhamer, Deborah L.; Weber, Eric J.; Arnold, Robert G.; Ferguson, P. Lee; Field, Jennifer A.; Furlong, Edward T.; Giesy, John P.; Halden, Rolf U.; Henry, Tala R.; Hites, Ronald A.; Hornbuckle, Keri C.; Howard, Philip H.; Luthy, Richard G.; Meyer, Anita K; Sáez, A. Eduardo; Saal, Frederick S. vom; Vulpe, Chris D.; Wiesner, Mark R.

doi:10.1289/ehp.1002497

Cited by 18 publications

(7 citation statements)

References 50 publications

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“…Identification of compounds at waste sites that appear to be persistent and occur at notable frequency is an important step in identifying compounds of emerging concern, as described by Ela et al (2011). More research is needed regarding the persistence, bioaccumulation, and toxicity of individual ECs and mixtures of ECs in water to evaluate the risk posed to the surrounding environment.…”

Section: Discussionmentioning

confidence: 99%

Emerging Contaminants at a Closed and an Operating Landfill in Oklahoma

Andrews¹,

Masoner²,

Cozzarelli³

2011

Groundwater Monitoring Rem

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Landfills are the final depositories for a wide range of solid waste from both residential and commercial sources, and therefore have the potential to produce leachate containing many organic compounds found in consumer products such as pharmaceuticals, plasticizers, disinfectants, cleaning agents, fire retardants, flavorings, and preservatives, known as emerging contaminants (ECs). Landfill leachate was sampled from landfill cells of three different age ranges from two landfills in Central Oklahoma. Samples were collected from an old cell containing solid waste greater than 25 years old, an intermediate age cell with solid waste between 16 and 3 years old, and operating cell with solid waste less than 5 years old to investigate the chemical variability and persistence of selected ECs in landfill leachate of differing age sources. Twenty‐eight of 69 analyzed ECs were detected in one or more samples from the three leachate sources. Detected ECs ranged in concentration from 0.11 to 114 μg/L and included 4 fecal and plant sterols, 13 household\industrial, 7 hydrocarbon, and 4 pesticide compounds. Four ECs were solely detected in the oldest leachate sample, two ECs were solely detected in the intermediate leachate sample, and no ECs were solely detected in the youngest leachate sample. Eleven ECs were commonly detected in all three leachate samples and are an indication of the contents of solid waste deposited over several decades and the relative resistance of some ECs to natural attenuation processes in and near landfills.

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Section: Discussionmentioning

confidence: 99%

Emerging Contaminants at a Closed and an Operating Landfill in Oklahoma

Andrews¹,

Masoner²,

Cozzarelli³

2011

Groundwater Monitoring Rem

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“…In surface waters, tri (2-chloroethyl) phosphate and tri (dichloroisopropyl) phosphate were both reported at a median concentration of 100 ng/L with detection frequencies of 57.6% and 12.9% in the 139 sampled streams (Kolpin et al, 2002). Additionally, flame retardants are easily accumulated in biomass and documented to be present in human and animal tissues, blood, and milk because of their high hydrophobicity (Houtman, 2010;Ela et al,2011).…”

Section: Waste-indicator Compounds and Hormones-a Group Of Waste-indicatormentioning

confidence: 99%

Occurrence, distribution, and seasonality of emerging contaminants in urban watersheds

et al. 2018

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The widespread occurrence of natural and synthetic organic chemicals in surface waters can cause ecological risks and human health concerns. This study measured a suite of contaminants of emerging concern (CECs) in water samples collected by the U.S. Environmental Protection Agency Region 8 around the Denver, Colorado, metropolitan area. The results showed that 109 of 144 analyzed pharmaceutical compounds, 42 of 55 analyzed waste-indicator compounds (e.g., flame retardants, hormones, and personal care products), and 39 of 72 analyzed pesticides were detected in the water samples collected monthly between April and November in both 2014 and 2015. Pharmaceutical compounds were most abundant in the surface waters and their median concentrations were measured up to a few hundred nanograms per liter. The CEC concentrations varied depending on sampling locations and seasons. The primary source of CECs was speculated to be wastewater effluent. The CEC concentrations were correlated to streamflow volume and showed significant seasonal effects. The CECs were less persistent during spring runoff season compared with baseflow season at most sampling sites. These results are useful for providing baseline data for surface CEC monitoring and assessing the environmental risks and potential human exposure to CECs.

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“…The two antimicrobial compounds used in personal care products, triclosan (TCS) and triclocarban (TCC), are also bioaccumulative and function as endocrine disruptors and are found in sediments and surface waters worldwide (Chalew and Halden 2009;Miller et al 2008;Higgins et al 2009;Delorenzo et al 2008). Because of their antimicrobial properties, they are believed to potentially inhibit microbial activity and biodegradation of more traditional pollutants, such as p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) and dieldrin (Chalew and Halden 2009;Ela et al 2011). The European Union has decided to ban the use of TCS in 2010, but the need for regulating TCC and TCS has still been questioned in the United States (Halden 2014).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of Legacy and Emerging Organochlorine Contaminants in Lumbriculus variegatus

Dang

Kroll

Supowit

et al. 2016

Arch Environ Contam Toxicol

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Freshwater sediment-dwelling Lumbriculus variegatus is known to serve as a vector for the transfer of contaminants from sediments to higher trophic level organisms, but limited data exist on the bioaccumulation of chemicals associated with sediments containing high total organic carbon (TOC). In the current study, sediments from the north shore area of Lake Apopka (Florida, USA), containing very high TOC [39 % (w/w)], were spiked with four chemicals-p,p'-dichlorordiphenyldichloroethylene (p,p'-DDE), dieldrin, fipronil, and triclosan-individually or in a mixture of the four and then used for bioaccumulation studies. Tissue concentrations of chemicals in L. variegatus were measured at 2, 7, 14, 21, and 28 days of exposure, and the bioaccumulation potential was evaluated using biosediment accumulation factors [BSAF (goc/glipid)]. Increase in total body burdens of all four chemicals in L. variegatus was rapid at day 2 and reached a steady-state level after 7 days in both single and mixture experiments. Tissue concentrations of fipronil peaked after 2 days and then decreased by 70 % in sediment experiments suggesting that in addition to the degradation of fipronil that occurred in the sediment, L. variegatus may also be able to metabolize fipronil. The calculated 28-day BSAF values varied among the chemicals and increased in the order fipronil (1.1) < triclosan (1.4) < dieldrin (21.8) < p,p'-DDE (49.8) in correspondence with the increasing degree of their hydrophobicity. The relatively high BSAF values for p,p'-DDE and dieldrin probably resulted from lower-than-expected sorption of chemicals to sediment organic matter either due to the nature of the plant-derived organic matter, as a result of the relatively short equilibration time among the various compartments, or due to ingestion of sediment particles by the worms.

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Toward Identifying the Next Generation of Superfund and Hazardous Waste Site Contaminants

Cited by 18 publications

References 50 publications

Emerging Contaminants at a Closed and an Operating Landfill in Oklahoma

Emerging Contaminants at a Closed and an Operating Landfill in Oklahoma

Occurrence, distribution, and seasonality of emerging contaminants in urban watersheds

Bioaccumulation of Legacy and Emerging Organochlorine Contaminants in Lumbriculus variegatus

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