Concentration comparison of selected constituents between groundwater samples collected within the Missouri River alluvial aquifer using purge and pump and grab-sampling methods, near the city of Independence, Missouri, 2013

This study is the first study in Indonesia that examines the factors that influence financial anxiety. Financial anxiety is a negative psychological impact where there is a decrease in various aspects so that, in total, it causes stress levels to jump. This study focuses on adolescents who live in Surabaya, which, based on BPS data, the city of Surabaya has the largest population in East Java and is dominated by adolescents. This study aims to determine the effect of income, debt, financial knowledge, and financial satisfaction on financial anxiety. Data were collected by distributing online questionnaires with random sampling methods to 154 respondents. Then, data were tabulated in excel, analyzed and processed using multiple linear regression in SPSS. The result of this study indicates that none of the independent variables affects financial anxiety. This is presumably due to the lack of public knowledge about financial anxiety, especially among Surabaya adolescents. Few studies examine financial anxiety as the dependent variable, which thought to cause limited public knowledge about this topic. Therefore, this study is expected to increase knowledge, literacy, and public awareness regarding financial anxiety, especially to adolescents in Surabaya.

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The Williston Basin and its Exploration Problems

Geophysics ◽

10.1190/1.19030003.1 ◽

1954 ◽

Vol 19 (3) ◽

pp. 572-581

Author(s):

Gerhard E. Lukk

Keyword(s):

North America ◽

North Dakota ◽

Missouri River ◽

Oil Industry ◽

Williston Basin ◽

A Minor ◽

The City ◽

Made In

Only recently has the Williston Basin, which gets its name from the City of Williston located on the Missouri River 20 miles east of the Montana-North Dakota border, become of great interest to the exploration departments of the oil industry. This interest in one of the largest and oldest geological basins in North-America was created by discoveries of oil in commercial quantities. A minor discovery was made in February', 1951 near Virden, Manitoba, followed by the discovery' of the Clarence Iverson Well in the vicinity of the Nesson Anticline on the 4th of April, 1951, followed by the discoveries of September, 1951 in the H. O. Bakken Well in the Tioga pool and in December of the same year the Shell Oil Company's discovery at Richey, Montana. The Virden Well is located near the northeastern border of the Williston Basin and Madison production was developed there by the California Standard Company. The Clarence Iverson Well was developed by the Amerada Petroleum Corporation and it produced from the Devonian and Madison.

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Evaluation of sampling methods for monitoring effluent phosphorus for on-site wastewater treatment systems

Water Science & Technology ◽

10.2166/wst.2012.107 ◽

2012 ◽

Vol 65 (11) ◽

pp. 2049-2054 ◽

Cited By ~ 1

Author(s):

Erik Johannessen ◽

Arild Schanke Eikum ◽

Tore Krogstad

Keyword(s):

Wastewater Treatment ◽

Sampling Method ◽

Sampling Methods ◽

Wastewater Treatment Plants ◽

Monitoring Program ◽

Grab Sampling ◽

Significant Difference ◽

Student’S T ◽

Composite Samples ◽

Student’S T Test

More than 1,600 prefabricated on-site wastewater treatment plants are in operation in the Morsa watershed in Norway. As of 2010 a monitoring program on the performance of these plants is in effect. Sampling methods for wastewater treatment plants is discussed, and different methods are compared. The study includes six different plant models, of which all are prefabricated package plants. The parameters investigated were total phosphorus (Tot-P), orthophosphate (PO4-P) and suspended solids (SS). Diurnal curves showed no apparent repetitive variation over 24 h intervals, indicating good equalization and robust design to compensate for highly variable loadings. A comparison of grab samples and time proportional composite samples showed almost identical average values, and a paired two-tailed Student's t-test indicates no statistically significant difference between the sampling methods. The results indicate that equivalent results should be expected irrespective of sampling method, and, as composite sampling is attributed to much higher costs, it is recommended that grab sampling should be used when a large number of plants are evaluated.

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Simple grab sampling methods for the measurement of WL(Rn) and WL(Tn) concentrations

10.2172/1441280 ◽

2018 ◽

Cited By ~ 1

Author(s):

Alan Lawrence Justus

Keyword(s):

Sampling Methods ◽

Grab Sampling

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A Review On Pollution Control And Ecology Water Pollution Control Permit: Effluent Limitations And Monitoring Requirements

Jurnal Teknologi ◽

10.11113/jt.v19.1058 ◽

1992 ◽

pp. 65-70

Author(s):

Faridah Maarof ◽

Dr. Sandra Parker

Keyword(s):

Water Pollution ◽

Water Quality ◽

Pollution Control ◽

Sampling Methods ◽

Moving Average ◽

Composite Sampling ◽

Advantages And Disadvantages ◽

Monthly Average ◽

The Cost ◽

The City

The purpose of this study is to review the effluent limitations and monitoring requirements authorized by the Arkansas Department of Pollution Control and Ecology and proposes recomendations to enhance the improvement of the present requirements. The study is done at the city of Fayetteville and it concentrates on three main issues: 1. Sampling methods: Grab Versus Composite Sampling 2. Cost of the Sampling methods 3. Distinction between a fixed monthly average and a moving average. Explanations and suggestions made are based on information from relevant literatures compiled with respect to monitoring of water quality. With the recomendations forwarded, it is hoped to aid the Arkansas Department of Pollution Control and Ecology to better understand the advantages and disadvantages of the Grab and Composite Sampling, realizing the cost involved and the distinction between using a fixed monthly average and a moving average measurement on the discharge limitation.

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