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IARC Monographs on the Evaluation of... 1999
Review
Topics: Animals; Carcinogenicity Tests; Carcinogens; Humans; Insecticides; Mutagenicity Tests; Mutagens; Neoplasms; Neoplasms, Experimental; Propane
PubMed: 10476458
DOI: No ID Found -
Amyloid : the International Journal of... Mar 2017
Topics: Adalimumab; Aged; Amyloidosis; Animals; Cardiomyopathies; Humans; Male; Middle Aged; Propane; Sulfonic Acids
PubMed: 28434308
DOI: 10.1080/13506129.2017.1284056 -
Chemosphere Feb 20171,2,3-Trichloropropane (TCP) is an emerging groundwater pollutant and suspected human carcinogen. TCP, a recalcitrant contaminant, has been detected in the subsurface...
1,2,3-Trichloropropane (TCP) is an emerging groundwater pollutant and suspected human carcinogen. TCP, a recalcitrant contaminant, has been detected in the subsurface near TCP manufacture facilities and many superfund sites. Considering the toxicity and the occurence of TCP, there is a need to seek for cost-effective treatment technologies for TCP-contaminated sites. This paper investigated TCP biodegradation by propane-oxidizing bacteria (PrOB) which are known to express propane monooxygenase (PrMO). PrMO can cometabolically degrade many different contaminants. Four PrOB, Rhodococus jostii RHA1, Mycobacterium vaccae JOB5, Rhodococcus rubber ENV425 and one isolate Sphingopyxis sp. AX-A were examined for their ability to degrade TCP. All the four PrOB resting cells were able to degrade TCP. Strain JOB5 exhibited the best TCP degradation ability (v 9.7 ± 0.7 μg TCP (mg protein)h). No TCP was degraded in the presence of acetylene (an inhibitor for PrMO), suggesting that PrMO might be responsible for TCP degradation. Furthermore, competitive inhibition was observed between propane and TCP, and between trichloroethylene (TCE) and TCP.
Topics: Bacteria; Biodegradation, Environmental; Carcinogens; Groundwater; Humans; Mixed Function Oxygenases; Propane; Rhodococcus; Trichloroethylene
PubMed: 27939660
DOI: 10.1016/j.chemosphere.2016.12.007 -
Environmental Science. Processes &... Aug 2015Biologically activated carbon (BAC) can be used in both municipal water and hazardous waste remediation applications to enhance contaminant attenuation in water;...
Biologically activated carbon (BAC) can be used in both municipal water and hazardous waste remediation applications to enhance contaminant attenuation in water; however, questions remain about how selective pressures can be applied to increase the capabilities of microbial communities to attenuate recalcitrant contaminants. Here we utilized flow-through laboratory columns seeded with municipally derived BAC and exposed to water from a local drinking water facility to query how propane biostimulation impacts resident microorganisms. Ecological analyses using high throughput phylogenetic sequencing revealed that while propane did not increase the total number of microbiological species, it did select for bacterial communities that were distinct from those without propane. Temporal extractions demonstrated that microbial succession was rapid and established in approximately 2 months. A higher density of propane monooxygenase genes and bacterial clades including the Pelosinus and Dechloromonas genera suggest an enhanced potential for the degradation of persistent water pollutants in propane-stimulated systems. However, the ecological selective pressure was exhausted in less than 15 cm of transit in this flow-through scenario (25 hour retention) indicating a pronounced zonation that could limit the size of a biostimulated zone and require physical mixing, hydraulic manipulation, or other strategies to increase the spatial impact of biostimulation in flow-through scenarios.
Topics: Bacteria; Biodegradation, Environmental; Charcoal; Phylogeny; Propane; Water Microbiology; Water Pollutants
PubMed: 26154499
DOI: 10.1039/c5em00212e -
Report on Carcinogens : Carcinogen... 2002
Topics: Animals; Carcinogens; Environmental Exposure; Government Regulation; Humans; Propane; United States
PubMed: 15323029
DOI: No ID Found -
Chekhoslovatskaia Biologiia Aug 1954
Topics: Bacteria; Propane; Pseudomonas
PubMed: 13231176
DOI: No ID Found -
Report on Carcinogens : Carcinogen... 2011
Topics: Animals; Carcinogens; Detergents; Environmental Exposure; Humans; Neoplasms; Propane
PubMed: 21869844
DOI: No ID Found -
Report on Carcinogens : Carcinogen... 2011
Topics: Animals; Carcinogens; Government Regulation; Humans; Hydrocarbons, Halogenated; Occupational Exposure; Propane; United States
PubMed: 21852817
DOI: No ID Found -
IARC Monographs on the Evaluation of... 1995
Review
Topics: Animals; Carcinogenicity Tests; Carcinogens; Humans; Propane
PubMed: 9097094
DOI: No ID Found -
Reviews of Environmental Contamination... 1988