Geochemical map showing the distribution and abundance of sulfate and fluoride in unfiltered water samples in the West Chichagof-Yakobi Wilderness Study Area, Sitka quadrangle, southeastern Alaska

1981 ◽  
Author(s):  
T.D. Hessin ◽  
G.L. Crenshaw
Keyword(s):  
Water Samples ◽  
The West

Enumeration and Identification of Asbestos Fibres in Water

1974 ◽  
Vol 32 ◽  
pp. 526-527 ◽  
Author(s):  
O. Mudroch ◽  
J. R. Kramer
Keyword(s):  
Water Supply ◽  
Water Samples ◽  
Drainage Basin ◽  
Lake Superior ◽  
Research Work ◽  
List Type ◽  
The West ◽  
Asbestos Fibre ◽  
Amphibole Asbestos

Approximately 60,000 tons per day of waste from taconite mining, tailing, are added to the west arm of Lake Superior at Silver Bay. Tailings contain nearly the same amount of quartz and amphibole asbestos, cummingtonite and actinolite in fibrous form. Cummingtonite fibres from 0.01μm in length have been found in the water supply for Minnesota municipalities.The purpose of the research work was to develop a method for asbestos fibre counts and identification in water and apply it for the enumeration of fibres in water samples collected(a) at various stations in Lake Superior at two depth: lm and at the bottom.(b) from various rivers in Lake Superior Drainage Basin.

Note on Testing the Water from the Asklepion Area, Athens

1993 ◽  
Author(s):  
Dora P. Crouch
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Detailed Analysis ◽  
Water Samples ◽  
Assistant Professor ◽  
The South ◽  
The West ◽  
South Slope ◽  
Technical University

These tests were performed at the Technical University of Athens, Department of Water Resources, by Assistant Professor Alexandra Katsiri during November-December 1988. The problem she was asked to investigate was in what ways these waters differed from ordinary drinking water in Athens. (I am extremely grateful to her for this gracious assistance.) The waters were gathered from three separate sites in and near the Asklepieion on the south slope of the Acropolis, Athens (Fig. 18.5). Specifically, they are: A. Sacred Spring in Asklepion B. Archaic shaft immediately west of Asklepion C. Byzantine cistern immediately adjacent to B, to the west Table 19.1 gives a detailed analysis of the water samples. The fact that the figures from the three sources differ significantly indicates that the three places derive their water from different channels within the Acropolis. Thus the belief of the workmen on the site that these are different waters has been verified.

Anthropogenic Activities and its Impact along the Coastal Region of Mangaluru, India

2019 ◽  
Vol 02 (03n04) ◽  
pp. 1940001
Author(s):  
H. K. Ramaraju ◽  
D. A. Kiran
Keyword(s):  
Surface Water ◽  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Water Samples ◽  
Anthropogenic Activities ◽  
Soil Samples ◽  
Dissolved Oxygen Concentration ◽  
The West ◽  
Low Dissolved Oxygen ◽  
Surface Water Samples

Mangaluru coast belt spreads about 22 Kms with Arabian Sea in the West and the Western Ghats in the East. Coastal anthropogenic activities such as disposal of untreated or partially treated sewage and industrial effluents and their possible impacts hinder the coastal environment. Huge amount of pollution load from the major industries located nearby are discharged into the sea directly or through the west flowing rivers of the area i.e. Gurupura and Nethravathi. Due to this, the soil properties also get affected. The preliminary study was carried out at the study area by considering surface water samples, i.e. stream water, river water, sea water and also soil samples to study the physicochemical characteristics. The study reveals that most of the surface water samples have low dissolved oxygen concentration and are high in BOD, COD, TDS, Electrical Conductivity (EC) and Chlorides Concentration. Very low dissolved oxygen concentration was observed in the Gurupura–Nethravathi Estuary point. With respect to fertility of the soil, most of the soil samples were below the normal range for the various parameters.

scholarly journals Presence of Francisella tularensis subsp. holarctica DNA in the Aquatic Environment in France

2021 ◽  
Vol 9 (7) ◽  
pp. 1398
Author(s):  
Camille D. Brunet ◽  
Aurélie Hennebique ◽  
Julien Peyroux ◽  
Isabelle Pelloux ◽  
Yvan Caspar ◽  
...  
Keyword(s):  
Francisella Tularensis ◽  
Water Samples ◽  
Real Time Pcr ◽  
Aquatic Environment ◽  
Geographic Area ◽  
The West ◽  
Tularensis Subsp ◽  
High Prevalence ◽  
Sources Of Infection ◽  
Pcr Assays

In 2018, the incidence of tularemia increased twofold in the west of France, with many pneumonic forms, suggesting environmental sources of infection. We investigated the presence of Francisella tularensis subsp. holarctica and other Francisella species DNA in the natural aquatic environment of this geographic area. Two sampling campaigns, in July 2019 and January 2020, allowed the collection of 87 water samples. Using a combination of real-time PCR assays, we tested the presence of either Francisella sp., F. tularensis/F. novicida, and F. tularensis subsp. holarctica, the latter being the only tularemia agent in Europe. Among 57 water samples of the first campaign, 15 (26.3%) were positive for Francisella sp., nine (15.8%) for F. tularensis and/or F. novicida, and four (7.0%) for F. tularensis subsp. holarctica. Ratios were 25/30 (83.3%), 24/30 (80.0%), and 4/30 (13.3%) for the second campaign. Among the thirty sites sampled during the two campaigns, nine were positive both times for Francisella sp., seven for F. tularensis and/or F. novicida, and one for F. tularensis subsp. holarctica. Altogether, our study reveals a high prevalence of Francisella sp. DNA (including the tularemia agent) in the studied aquatic environment. This aquatic environment could therefore participate in the endemicity of tularemia in the west of France.

Pollutant Identification by Selected Area Electron Diffraction

1974 ◽  
Vol 32 ◽  
pp. 532-533
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson ◽  
C. W. Walker
Keyword(s):  
Thermal Treatment ◽  
Electron Diffraction ◽  
Sample Preparation ◽  
Crystal Structures ◽  
Water Samples ◽  
Environmental Samples ◽  
Short Review ◽  
Selected Area Electron Diffraction ◽  
Multiple Component

Selected area electron diffraction (SAD) has been used successfully to determine crystal structures, identify traces of minerals in rocks, and characterize the phases formed during thermal treatment of micron-sized particles. There is an increased interest in the method because it has the potential capability of identifying micron-sized pollutants in air and water samples. This paper is a short review of the theory behind SAD and a discussion of the sample preparation employed for the analysis of multiple component environmental samples.

The fight to save Uganda’s White Rhino

1964 ◽  
Vol 2 (01) ◽  
pp. 6-12
Keyword(s):  
The West ◽  
West Nile ◽  
White Rhino

In the West Nile District of Uganda lives a population of white rhino—those relies of a past age, cumbrous, gentle creatures despite their huge bulk—which estimates only 10 years ago, put at 500. But poachers live in the area, too, and official counts showed that white rhino were being reduced alarmingly. By 1959, they were believed to be diminished to 300.

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