"degree of pollution" is a correct and usable phrase in written English.
It refers to the level or extent of pollution in a certain area or environment. It can be used in various contexts, such as academic or scientific writing, news articles, and everyday conversation. Example: The study showed that the degree of pollution in the river has reached dangerous levels, causing harm to aquatic life and threatening the health of nearby communities.
Whilst geo-accumulation indices indicated that the sediments ranged from unpolluted to moderately polluted Modified degree of pollution and Nemerow pollution index calculations which incorporate multi-element effects, however, indicated no pollution.
This causes an additional systematic error if the degree of pollution is unknown.
No precise scales have yet been developed to gauge the degree of pollution in any particular state.
It was a degree of pollution that had never been recorded in London since the government introduced its current methods and scales for recording air quality, the Daily Air Quality Index, in 2012.
Although the upper reaches of the river remain relatively pure, the lower portions of the Vistula, in common with similar stretches of many of the great rivers of the world, exhibit a high degree of pollution.
Because individual ciliate species vary greatly in their tolerance of pollution, the ciliates found in a body of water can be used to gauge the degree of pollution quickly.
The objectives of the current study is: (1) to assess heavy metal pollution in sediments, (2) to investigate the seasonal variations and degree of contamination and pollution using pollution indices as contamination factor (CF), contamination degree (CD), pollution load index (PLI) and geo-accumulation index (Igeo), and (3) to identify the similar pollution sites using cluster analysis.
It is necessary to carry out well-designed management and control measures on pollution in Taihu Lake water according to different degrees of pollution in different regions.
Spatial distribution showed different degrees of pollution and a consistently rising trend downstream, indicating strong influence of local sources including agricultural and untreated urban industrial wastewater.
However multi-element indices such as the modified degree of contamination and nemerow pollution indices indicate no pollution in the study area so far as the heavy metals studied are concerned.
Table 1 shows the classification of heavy metal modified degree of contamination (mCd), Nemerow pollution index (PN), Index of geo-accumulation (Igeo) and potential ecological risk used for the sediment.
