Water indices

Ebook "The coliform index and waterborne disease: Problems of microbial drinking water assessment" examine the use of the coliform group as indicator organisms. Given recent technological advances in detection techniques, and also what appears to be the inability of the coliform index to adequately indicate the more significant causative agents of waterborne disease in the developed world, the text explores the future use of coliforms.

207p tracanhphuonghoa1007 22-04-2024 2 1   Download

In study "Impact of urbanization on seawater quality in Quang Ninh province" the authors use indicators to assess the level of water pollution, such as chemical and microbial pollution and measure the impact of urban factors, such as population growth, wastewater discharge and water consumption. In the survey results of seawater quality in two seasons, the rainy season and the dry season, there is a difference in some specific hydrological indicators, such as Coliform exceeding the allowable threshold in the dry season and iron and ammonium content tending to increase.

11p tukhauquantuong1011 22-04-2024 4 2   Download

The study aims to investigate potential instabilities in the dike's soil structure. The findings of the research indicate that using the SLOPE/W module of the GEOSTUDIO software with GLEM provides the recommended factor of safety (FOS).

7p visergey 02-04-2024 4 1   Download

This research aims to assess the stability of the Bung Xang Lake embankment in the context of changing water levels due to change climate, specifically recent high tides. In this research, data from two cross-sections were collected and analyzed using Plaxis 2D V22 software. The simulation results indicate that the piles with a length of 11.30 meters, as per the design, still fall within the deformation range of the subsoil, especially at the surveyed location with weak and thick geological conditions (MC2-2), which limits the effectiveness of the piles.

13p visergey 02-04-2024 8 1   Download

This study aims to analyze the influence of economic activities, especially the various land use types on the water quality of Hieu river in Chau Hanh - a commune in mountainous areas of Vietnam based on the water quality indicator data with the characteristics of riparian buffer.

8p vilarry 01-04-2024 3 1   Download

Study on the actual situation of domestic water of 24 military units in the Northern region in 2022. Subjects and methods: A descriptive cross-sectional study with analysis and evaluation of seven basic physical, chemical and microbiological indicators on 113 samples of domestic water collected at 24 military units stationed in the Northern Region from July to October, 2022.

4p viohoyo 02-04-2024 3 2   Download

The research on the structure of the phytoplankton community in relation to the physicalchemical parameters of seawater needs to be carried out to see indicators of fertility and availability of natural food in the waters that will be used as a marine aquaculture location. To find out the relationship between physico-chemical parameters and phytoplankton abundance, Principal Component Analysis (PCA) was used. Some physico-chemical parameters observed were temperature, brightness, pH, salinity, coated oxygen (DO), phosphate, nitrate, and ammonia.

7p longtimenosee06 27-03-2024 5 2   Download

Coliform bacteria are essential variables for assessing riverine water quality. In this study, the faecal indicator bacteria (FIB) in relationship with some physico-chemical variables were investigated during the period 2020-2022 for four urban rivers (To Lich, Lu, Set, and Kim Nguu) in the inner Hanoi city to provide the updated water quality of these rivers.

14p vialfrednobel 21-12-2023 3 2   Download

In this study, the water quality of the Day River flowing through Ninh Binh province was assessed through (1) several individual indicators and (2) the Water Quality Index - WQI and at the same time, the main sources of discharge in the area.

8p viindra 06-09-2023 3 3   Download

Hanoi, the socio - economic center of Vietnam, where the demand for water supply usage is always the highest compared to other cities in the country. In order to support decision-makers in sustainably managing the water supply system for the capital (HUDWSS), this study applied the fuzzy hierarchical analysis process to build a sustainable hierarchy water supply framework based on the current satisfaction from the communities.

17p viindra 06-09-2023 5 2   Download

The trophic levels in urban lakes are typically based on the forms of nutrition and phytoplankton communities in the lakes. In this study, comparisons between eutrophication indices and the water quality index (VN-WQI) were used to classify the water quality of 20 lakes in Hanoi, Vietnam.

12p viengels 25-08-2023 6 2   Download

Bài viết đề xuất được Khung đánh giá với 5 khía cạnh then chốt (key dimensions), 17 chỉ thị (indicators) với 28 biến số (variables) tương ứng. Từ đó có thể tính toán các chỉ số ANN tổng hợp (water security index - WSI) cho từng khu vực cụ thể, làm cơ sở cho việc ra quyết định và hoạch định chính sách để cải thiện mức độ ANN cho lưu vực trong điều kiện biến đổi khí hậu và phát triển lưu vực trong tương lai.

15p kimphuong17 01-08-2023 3 3   Download

The study presents the evaluation results of typical PAEs (6 PAE indicators) of the PAE family in water samples from Ho Tay Lake, Hanoi. The quality of lake water in general and in Hanoi in particular is influenced by many factors.

10p viironman 02-06-2023 7 3   Download

This article presents the contents related to water resource inventory in some countries and the current status of national water resource inventory activities in order to provide a system inventory criteria and methodology to be used in the inventory of water resources in future development.

9p viironman 02-06-2023 4 3   Download

Currently, water resources planning is paying attention in Vietnam with several master plans established in some large basins across the country. However, in the context of water resources planning, the water allocation task still has inconsistency in calculation methodology.

16p viironman 02-06-2023 6 3   Download

Sampling frequency plays important role in water quality monitoring activity. A suitable sampling frequency could save time and cost of monitoring work. In this study, coastal seawater quality of the Northeast of Quang Ninh Province, Vietnam was evaluated by single indicator and statistical analysis of the monitored data from 2016–2019.

9p viironman 02-06-2023 6 3   Download

The indicators of climate change in Central Europe, Hungary is showing a trend of decrease in rainfall, increase in temperature and especially extreme weather that is becoming more usual and unpredictable. The current study presents the application of the MIKE SHE model to examine the role of unsaturated soil settings and the effects of climate change on various hydrological parameters and water balance components.

18p viironman 02-06-2023 5 2   Download

The structure of haplogroup H reveals significant differences between the western and eastern edges of the Mediterranean, as well as between the northern and southern regions. Human populations along the westernmost Mediterranean coasts, which were settled by individuals from two continents separated by a relatively narrow body of water, show the highest frequencies of mitochondrial haplogroup H.

14p vinarcissa 21-03-2023 4 1   Download

The flexibility and hydrophobia indicate that marshmallow-like gel can be used as a sponge as a sorption media to remove unwanted organic compounds quickly. Herein, this study reported the outstanding capability of these materials for the separation of organic solvents in water.

4p vilucius 03-03-2023 3 1   Download

This study contributes to the project titled “Research solutions to develop aquaculture in large reservoirs towards efficient and sustainable commodity production” developed by MARD. The result of this study will lead to follow-up studies on detailed spatial planning for aquaculture, rearrangement of cages, and identification of suitable locations for aquaculture.

6p vicedric 08-02-2023 3 1   Download