scholarly journals Results of analyses of fur samples from the San Joaquin Kit Fox and associated soil and water samples from the Naval Petroleum Reserve No. 1, Tupman, California

1992 ◽  
Author(s):  
G.W. II Suter ◽  
A.E. Rosen ◽  
J.J. Beauchamp ◽  
T.T. Kato
Keyword(s):  
Water Samples ◽  
Kit Fox ◽  
San Joaquin Kit Fox ◽  
Soil And Water

Some species ofPythiumisolated from soil and water samples collected in western Africa

1994 ◽  
Vol 149 (3) ◽  
pp. 217-222 ◽  
Author(s):  
Bernard Paul ◽  
Philippe Bouchet ◽  
Françoise Bouchet
Keyword(s):  
Water Samples ◽  
Western Africa ◽  
Soil And Water

scholarly journals Diversity ofLeptospiraspp. in Rats and Environment from Urban Areas of Sarawak, Malaysia

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Chai Fung Pui ◽  
Lesley Maurice Bilung ◽  
Kasing Apun ◽  
Lela Su’ut
Keyword(s):  
Polymerase Chain Reaction ◽  
Water Samples ◽  
Urban Areas ◽  
Environmental Samples ◽  
Soil Samples ◽  
Chain Reaction ◽  
Prevalence Studies ◽  
Pcr Method ◽  
Polymerase Chain ◽  
Soil And Water

Various prevalence studies onLeptospirain animals and humans, as well as environmental samples, had been conducted worldwide, including Malaysia. However, limited studies have been documented on the presence of pathogenic, intermediate, and saprophyticLeptospirain selected animals and environments. This study was therefore conducted to detectLeptospiraspp. in rats, soil, and water from urban areas of Sarawak using the polymerase chain reaction (PCR) method. A total of 107 rats, 292 soil samples, and 324 water samples were collected from April 2014 to February 2015. PathogenicLeptospirawas present in 5.6% (6/107) of rats, 11.6% (34/292) of soil samples, and 1.9% (6/324) of water samples. IntermediateLeptospirawas present in 2.7% (8/292) of soil samples and 1.9% (6/324) of water samples. SaprophyticLeptospirawas present in 10.3% (11/107) of rats, 1.4% (4/292) of soil samples, and 0.3% (1/324) of water samples. From this study, 76Leptospiraspp. were isolated. Based on DNA sequencing, the dominantLeptospiraspp. circulating in urban areas of Sarawak are pathogenicLeptospira noguchii, intermediateLeptospira wolffiiserovar Khorat, and saprophyticLeptospira meyeri, respectively. Overall, this study provided important surveillance data on the prevalence ofLeptospiraspp. from rats and the environment, with dominant local serovars in urban areas of Sarawak.

Food of the San Joaquin Kit Fox

1943 ◽  
Vol 24 (4) ◽  
pp. 499-499 ◽  
Author(s):  
A. C. Hawbecker
Keyword(s):  
Kit Fox ◽  
San Joaquin Kit Fox

scholarly journals Synthetic Pyrethroids Pesticide Residues in Soils and Drinking Water Sources from Cocoa Farms in Ghana

2016 ◽  
Vol 5 (1) ◽  
pp. 60 ◽  
Author(s):  
Benedicta Y. Fosu-Mensah ◽  
Elvis D. Okoffo ◽  
Michael Mensah
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Pesticide Residues ◽  
Agricultural Soils ◽  
Water Source ◽  
Soil Samples ◽  
Synthetic Pyrethroids ◽  
Lambda Cyhalothrin ◽  
Cocoa Farm ◽  
Soil And Water

The contamination of pesticides in 32 soils and 64 drinking water samples was investigated from cocoa farms in the Dormaa West District of Ghana to assess pollution status. A total of nine synthetic pyrethroids pesticides were measured with a high resolution Varian CP-3800 Gas Chromatograph equipped with <sup>63</sup>Ni electron capture detector (ECD). Eight synthetic pyrethroid residues namely fenvalerate, deltamethrin, cypermethrin, bifenthrin, permethrin, lambda-cyhalothrin, allethrin and cyfluthrin were detected with lambda-cyhalothrin and allethrin occurring most frequently in soil and water respectively. The concentrations of synthetic pyrethroids residues in the soil samples were in the ranges of; 0.02-0.03 mg/kg for lambda-cyhalothrin, 0.010-0.02 mg/kg for allethrin, 0.010-0.04 mg/kg for cyfluthrin, &lt;0.01-0.04 mg/kg for cypermethrin, 0.02-0.06 mg/kg for deltamethrin, and &lt;0.01-0.03 mg/kg for bifenthrin. Similarly, the synthetic pyrethroids residues in the water samples were in the ranges of; 0.01-0.05 µg/L for allethrin, 0.01-0.04 µg/L for fenvalerate, 0.01-0.04 µg/L for cypermethrin and 0.01-0.05 µg/L for deltamethrin. The concentrations of synthetic pyrethroids pesticide residues recorded in the soil samples analysed were generally below and within their respective US MRLs for agricultural soils, except the mean concentration values recorded for pesticides such as lambda-cyhalothrin at Diabaa (S2) and Krakrom (S3), allethrin at Diabaa (S2) and deltamethrin at Kwakuanya (S4), which were above their respective US MRLs for agricultural soils. The trends of synthetic pyrethroids pesticide residues in the water samples analysed from the various distances to cocoa farms decreased with an increase of water source to cocoa farm (ranking; 0-15m&gt;16-30m&gt;above 30m). All synthetic pyrethroids pesticide residues recorded in the water samples were below and within their respective WHO MRLs for drinking water except for deltamethrin, which exceeded the WHO MRL at Kwakuanya (S4) at distance 0-15m from a cocoa farm. The presence of synthetic pyrethroids residues in the soil and water samples analysed is an indication of the use of the pesticide by cocoa farmers in the study area. The routine monitoring of pesticide residues in the study area is necessary for the control and reduction of environmental pollution.

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