Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Ronald T, Checkai"'
Autor:
Roman G. Kuperman, Ronald T. Checkai, Marcos Vinicius Bastos Garcia, Jörg Römbke, Gladys L. Stephenson, José Paulo Sousa
Publikováno v:
Pesquisa Agropecuária Brasileira, Vol 44, Iss 8, Pp 811-824 (2009)
Over the past two decades, soil ecotoxicologists have made strides in utilizing the basic concepts and advancements in soil zoology and ecology. They have applied the existing tools, and developed new ones to investigate how chemical contamination ca
Externí odkaz:
https://doaj.org/article/c797d15bb3514189b93297e781611190
Publikováno v:
Ecotoxicology and Environmental Safety. 153:32-39
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 (4-ADNT), nitroglycerin (NG), and 2,4,6,8,10,12-hexanitrohexaazaisowurtzitane (CL-20) on litt
Autor:
Richard M. Higashi, Ronald T. Checkai, Teresa W.-M. Fan, Roman G. Kuperman, Michael Simini, Keith Sappington, Carlton T. Phillips
Publikováno v:
Environmental Toxicology and Chemistry. 37:846-853
We investigated the toxicity of selenium (Se) to the soil invertebrates Folsomia candida (Collembola) and Enchytraeus crypticus (potworm). Studies were designed to generate ecotoxicological benchmarks for developing ecological soil screening levels (
Autor:
Dominic M. Di Toro, Mike Simini, Sabine G. Dodard, Manon Sarrazin, Tifany L. Torralba-Sanchez, Ronald T. Checkai, Louise Paquet, Geoffrey I. Sunahara, Jalal Hawari, Dave T.F. Kuo, Roman G. Kuperman, Herbert E. Allen
Publikováno v:
Applied Soil Ecology. 104:25-30
We investigated the bioconcentration potential of nitrogen-based compounds 4-nitroanisole (4-NAN), 3,5-dinitro-o-toluamide (3,5-DNoTAME), and 2-methoxy-5 nitropyridine (2-M-5-NPYNE) using earthworm Eisenia andrei exposures in aqueous exposure media i
Autor:
Roman G, Kuperman, Ronald T, Checkai, Michael, Simini, Carlton T, Phillips, Richard M, Higashi, Teresa W-M, Fan, Keith, Sappington
Publikováno v:
Environmental toxicology and chemistry. 37(3)
We investigated the toxicity of selenium (Se) to the soil invertebrates Folsomia candida (Collembola) and Enchytraeus crypticus (potworm). Studies were designed to generate ecotoxicological benchmarks for developing ecological soil screening levels (
Autor:
Roman G, Kuperman, Morgan L, Minyard, Ronald T, Checkai, Geoffrey I, Sunahara, Sylvie, Rocheleau, Sabine G, Dodard, Louise, Paquet, Jalal, Hawari
Publikováno v:
Environmental toxicology and chemistry. 36(11)
We investigated individual toxicities of the nitrogen-based energetic materials (EMs) 2,4-dinitrotoluene (2,4-DNT); 2-amino-4,6-dinitrotoluene (2-ADNT); 4-amino-2,6-dinitrotoluene (4-ADNT); and nitroglycerin (NG) on microbial activity in Sassafras sa
Publikováno v:
Applied Soil Ecology. 83:210-218
We investigated the effects of nitramine explosive CL-20 (China Lake compound 20) on the indigenous soil invertebrate community in Sassafras sandy loam (SSL) soil using a 12-week soil microcosm assay. Freshly collected SSL soil was amended with CL-20
In separate, replicated experiments, we experimentally established wash-off coefficients (kw) for the chemical agent VX on grass, utilizing 1 and 3 L VX droplets at 0.017 (1 min), 1, and 4 h after dissemination. A 10 mm (0.39 in.) rain event at 0.017
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e713f3e5b80cff46226c9403c544807
https://doi.org/10.21236/ad1016093
https://doi.org/10.21236/ad1016093
A method was developed for maintaining healthy plants in a chemical surety hood and for disseminating, observing, and evaluating VX [O-ethyl-S-(2-diisopropylaminoethyl) methyl phosphonothioate] droplet spread, absorption, and appearance on leaves. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::350510c81b3af54165a150d8a5f23977
https://doi.org/10.21236/ad1012054
https://doi.org/10.21236/ad1012054
Autor:
Guy Ampleman, Sylvie Rocheleau, Roman G. Kuperman, Ronald T. Checkai, Mike Simini, Jalal Hawari, Geoffrey I. Sunahara, Sonia Thiboutot
Publikováno v:
Science of The Total Environment. 408:3193-3199
The presence of energetic materials (used as explosives and propellants) at contaminated sites is a growing international issue, particularly with respect to military base closures and demilitarization policies. Improved understanding of the ecotoxic