Results 251 to 260 of about 2,756,178 (300)

Water Quality Index (WQI)

2020
In this chapter, we discuss the formulation of WQI that have been used by DOE, Malaysia to measure the quality of the river as well as drinking water in Malaysia. We begin with the elaboration on all six parameters that will used in the formulation later.
Samsul Ariffin Abdul Karim, Nur Fatonah Kamsani   +1 more
openaire   +1 more source

Stochastic water quality index

Environmental Technology Letters, 1982
Abstract A Stochastic Water Quality Index (SWQI) is proposed and its use in assessing water quality in the Linggi River in Malaysia is shown. The SWQI provides for the first time an approach for developing an index which incorporates the probabilistic water quality entities.
B. N. Lohani, Norhayati Mustapha
openaire   +1 more source

Water Quality Index Using IOT

2018 International Conference on Inventive Research in Computing Applications (ICIRCA), 2018
As indicated by various Organization, water pollution executes around 1.2 Million deaths in India Every Year. None of the Indian cities compiles with water quality standard provided by World Health Organization. Water Pollution is the single greatest natural wellbeing hazard.
Rajat Verma, Laxmi Ahuja, Sunil Kumar Khatri   +2 more
openaire   +1 more source

Water Poverty Index (2002)

2017
This layer presents the Water Poverty Index (WPI) in 141 countries around the world. The WPI is a water management tool that expresses an interdisciplinary measure which links household welfare with water availability and indicates the degree to which water scarcity impacts on human populations.
openaire   +1 more source

A Water Quality Economic Index

Water Quality Research Journal, 1974
Abstract A methodology is presented for producing a water quality economic index which will provide information on the direction and the amount of change in water quality on a regional and a national basis. It will be useful for evaluation of water quality trends and for economic decision making regarding preventive measures and ...
P. J. Reynolds, P. H. Peters, W. M. Keilani   +2 more
openaire   +1 more source

Water Quality Indexing and Scoring

Journal of the Environmental Engineering Division, 1980
The desirability of developing water quality indices, which has been frequently cited, is examined. The development of currently available indexes are reviewed and a distinction is made between the indexing and scoring of water quality samples. It is pointed out that many indexes are, in fact, scoring methods, and that the mathematical basis for the ...
Roy O. Ball, Richard L. Church
openaire   +1 more source

Simplifying the Water Poverty Index

Social Indicators Research, 2009
In this paper, principal components methodology is used to derive simplified and cost effective indexes of water poverty. Using a well known data set for 147 countries from which an earlier five-component water poverty index comprising of Resources, Access, Capacity, Use and Environment was constructed, we find that a simplified three-component ...
Danny I. Cho, Tomson Ogwang, Christopher Opio   +2 more
openaire   +1 more source

Water Quality Index and Status

2011
This chapter includes a methodology for determining the water quality status of a river. The water quality of the Yamuna River is described using indirect and direct methods. The indirect method is based on various water quality indices (WQI), whereas the direct method uses water quality data at various locations on the river.
Raveendra Kumar Rai, Alka Upadhyay, C. Shekhar P. Ojha, Vijay P. Singh   +3 more
openaire   +1 more source

Refractive Index Mysteries of Water

The Journal of Physical Chemistry B, 2000
Even though the refractive index is dominated by single molecule effects, such as the polarizability, there are some aspects of this property for water that are different from the refractive index behavior of most other liquids. Here, we discuss, then explain, these differences in terms of a two-state bonding model for this liquid.
G. Wilse Robinson, Chul Hee Cho, Gregory I. Gellene   +2 more
openaire   +1 more source

Redefining the Water Poverty Index

Water International, 1998
The Water Poverty Index (WPI) of arid and semiarid climatic zones is redefined by introducing the contribution of rainfed agriculture into WPI calculations and by making the WPI equation account for diversities in climatic conditions within arid and semiarid zones and for recycled household water used in irrigation.
openaire   +1 more source