Search Results - "Checkai, Ronald T."

Energetic contaminants inhibit plant litter decomposition in soil by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Sunahara, Geoffrey I., Hawari, Jalal

“…Individual effects of nitrogen-based energetic materials (EMs) 2,4-dinitrotoluene (2,4-DNT), 2-amino-4,6-dinitrotoluene (2-ADNT), 4-amino-2,6-dinitrotoluene…”
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Inhibition of soil microbial activity by nitrogen‐based energetic materials by Kuperman, Roman G., Minyard, Morgan L., Checkai, Ronald T., Sunahara, Geoffrey I., Rocheleau, Sylvie, Dodard, Sabine G., Paquet, Louise, Hawari, Jalal

“…We investigated individual toxicities of the nitrogen‐based energetic materials (EMs) 2,4‐dinitrotoluene (2,4‐DNT); 2‐amino‐4,6‐dinitrotoluene (2‐ADNT);…”
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Selenium toxicity to survival and reproduction of Collembola and Enchytraeids in a sandy loam soil by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Higashi, Richard M., Fan, Teresa W.‐M., Sappington, Keith

“…We investigated the toxicity of selenium (Se) to the soil invertebrates Folsomia candida (Collembola) and Enchytraeus crypticus (potworm). Studies were…”
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Soil properties affect the toxicities of 2,4,6-trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) to the enchytraeid worm Enchytraeus crypticus by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Kolakowski, Jan E., Lanno, Roman

“…The authors investigated individual toxicities of 2,4,6‐trinitrotoluene (TNT) and hexahydro‐1,3,5‐trinitro‐1,3,5‐triazine (RDX) to the potworm Enchytraeus…”
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Toxicity of 2,4-dinitrotoluene to terrestrial plants in natural soils by Rocheleau, Sylvie, Kuperman, Roman G., Simini, Mike, Hawari, Jalal, Checkai, Ronald T., Thiboutot, Sonia, Ampleman, Guy, Sunahara, Geoffrey I.

“…The presence of energetic materials (used as explosives and propellants) at contaminated sites is a growing international issue, particularly with respect to…”
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Phytotoxicity and uptake of nitroglycerin in a natural sandy loam soil by Rocheleau, Sylvie, Kuperman, Roman G., Dodard, Sabine G., Sarrazin, Manon, Savard, Kathleen, Paquet, Louise, Hawari, Jalal, Checkai, Ronald T., Thiboutot, Sonia, Ampleman, Guy, Sunahara, Geoffrey I.

“…Nitroglycerin (NG) is widely used for the production of explosives and solid propellants, and is a soil contaminant of concern at some military training…”
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Toxicity benchmarks for antimony, barium, and beryllium determined using reproduction endpoints for Folsomia candida, Eisenia fetida, and Enchytraeus crypticus by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Speicher, Jason A., Barclift, David J.

“…The U.S. Environmental Protection Agency is developing ecological soil screening levels (Eco‐SSLs) for the ecological risk assessment of contaminants at…”
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Phytotoxicity of nitroaromatic energetic compounds freshly amended or weathered and aged in sandy loam soil by Rocheleau, Sylvie, Kuperman, Roman G., Martel, Majorie, Paquet, Louise, Bardai, Ghalib, Wong, Stephen, Sarrazin, Manon, Dodard, Sabine, Gong, Ping, Hawari, Jalal, Checkai, Ronald T., Sunahara, Geoffrey I.

“…The toxicities of 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitrobenzene (TNB), 2,4-dinitrotoluene (2,4-DNT), and 2,6-dinitrotoluene (2,6-DNT) to terrestrial…”
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State of the science and the way forward for the ecotoxicological assessment of contaminated land by Kuperman, Roman G.(Edgewood Chemical Biological Center), Checkai, Ronald T.(Edgewood Chemical Biological Center), Garcia, Marcos Vinicius Bastos(Embrapa Amazônia Ocidental), Römbke, Jörg(Universidade de Coimbra IMAR-Coimbra Interdisciplinary Centre Departmento de Zoologia), Stephenson, Gladys L, Sousa, José Paulo(Universidade de Coimbra IMAR-Coimbra Interdisciplinary Centre Departmento de Zoologia)

“…Over the past two decades, soil ecotoxicologists have made strides in utilizing the basic concepts and advancements in soil zoology and ecology. They have…”
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Toxicity of emerging energetic soil contaminant CL-20 to potworm Enchytraeus crypticus in freshly amended or weathered and aged treatments by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Anthony, J. Steven, Kolakowski, Jan E., Davis, Emily A.

“…We investigated the toxicity of an emerging polynitramine energetic material hexanitrohexaazaisowurtzitane (CL-20) to the soil invertebrate species Enchytraeus…”
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Weathering and aging of 2,4,6-trinitrotoluene in soil increases toxicity to potworm Enchytraeus crypticus by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Kolakowski, Jan E., Kurnas, Carl W.

“…Energetic materials are employed in a wide range of commercial and military activities and often are released into the environment. Scientifically based…”
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Toxicities of dinitrotoluenes and trinitrobenzene freshly amended or weathered and aged in a sandy loam soil to enchytraeus crypticus by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Kolakowski, Jan E., Kurnas, Carl W.

“…Scientifically based ecological soil‐screening levels are needed to identify concentrations of contaminant energetic materials (EMs) in soil that present an…”
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Toxicity of chemical warfare agent HD (mustard) to the soil microinvertebrate community in natural soils with contrasting properties by Kuperman, Roman G., Phillips, Carlton T., Checkai, Ronald T.

“…A microcosm technique was used to determine the ecotoxicity of the chemical warfare agent HD (mustard) to the indigenous soil microinvertebrate communities. HD…”
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Reproduction and survival of Eisenia fetida in a sandy loam soil amended with the nitro-heterocyclic explosives RDX and HMX by Simini, Michael, Checkai, Ronald T., Kuperman, Roman G., Phillips, Carlton T., Kolakowski, Jan E., Kurnas, Carl W., Sunahara, Geoffrey I.

“…Munitions manufacturing, disposal, testing, training and other operations at military sites have produced elevated levels of explosives and related materials…”
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A proteome-based assessment of the earthworm Eisenia fetida: response to chemical warfare agents in a sandy loam soil by Kuperman, Roman G., Checkai, Ronald T., Ruth, Lisa M., Henry, Tammy, Simini, Michael, Kimmel, David G., Phillips, Carlton T., Bradley, Brian P.

“…Proteins are known to respond rapidly when an organism is exposed to a toxicant and this response is consistent and unique to the xenobiotics. Induced and…”
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Bioavailability and Soil Boundary Conditions for Ecological Soil Screening Levels: Benchmarks for Metal Toxicity to Soil Invertebrates by Checkai, Ronald T, Kuperman, Roman G, Simini, Michael, Phillips, Carlton T

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Toxicity of chemical-warfare agent HD to Folsomia candida in different soil types by Phillips, Carlton T., Kuperman, Roman G., Checkai, Ronald T.

“…We investigated the ecotoxicity of the chemical-warfare agent (CWA) HD (Mustard) using Collembola reproduction test with numbers of adults and juveniles as…”
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Determining the effects of pollutants on soil faunal communities and trophic structure using a refined microcosm system by Parmelee, Robert W., Phillips, Carlton T., Checkai, Ronald T., Bohlen, Patrick J.

“…We used a refined microcosm technique to investigate the toxicity of copper, cadmium, malathion, and the polychlorinated biphenyl, Aroclor 1254, to trophic…”
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Survival and reproduction of Enchytraeus crypticus (Oligochaeta, Enchytraeidae) in a natural sandy loam soil amended with the nitro-heterocyclic explosives RDX and HMX by Kuperman, Roman G., Checkai, Ronald T., Simini, Michael, Phillips, Carlton T., Kolakowski, Jan E., Kurnas, Carl W., Sunahara, Geoffrey I.

“…Munition manufacturing, disposal, testing, training and other operations at military sites produced elevated levels of explosives and related materials in…”
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Developing earthworm bioconcentration factors of nitrogen-based compounds for predicting environmentally significant parameters for new munition compounds in soil by Kuperman, Roman G., Simini, Mike, Checkai, Ronald T., Dodard, Sabine G., Sarrazin, Manon, Hawari, Jalal, Paquet, Louise, Sunahara, Geoffrey I., Di Toro, Dominic M., Allen, Herbert E., Kuo, Dave Ta Fu, Torralba-Sanchez, Tifany L.

“…•Bioconcentration factors (BCF) of three nitrogen-based compounds were determined using earthworm Eisenia andrei exposures in aqueous exposure media.•Studies…”
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