评估印度一个高度变化的亚热带河流的饮用水和灌水质量,使用水化学指数
Aznarul Islam1, Md Mofizul Hoque2, Tahamina Nasrin2
1Department of Geography, Aliah University, 17 Gorachand Road, Kolkata, 700014, West Bengal, India. aznarulislam@gmail.com.
Scientific reports
|February 18, 2026
概括
印度的达莫达河水在很大程度上不适合饮用,污染主要来自未经处理的废水. 然而,该水仍然适合灌,这凸显了迫切需要进行水质管理的需要.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 水资源管理 水资源管理
背景情况:
- 河流水污染是一个全球性问题,特别影响人口密的热带和亚热带地区的饮用水和灌水质量.
- 印度的达莫达河面临着由于工业和城市废水排放而导致水质恶化的挑战.
- 评估时空水质对于可持续的水资源管理至关重要.
研究的目的:
- 调查大莫达河水的水化学特性,并评估大莫达河水是否适合饮用和灌.
- 评估不同季节 (季风前,季风前,季风后) 和空间位置的水质.
- 确定污染源,并提供改善水质的建议.
主要方法:
- 利用水化学指数来评估饮用和灌用水的质量.
- 在季风前,季风前和季风后收集的水样进行了时空分析.
- 采用统计分析,包括ANOVA,以确定水质参数的显著变化.
主要成果:
- 水质指数 (WQI) 显示,绝大多数河流水样 (68.92%总体) 不适合饮用,特别是在Mujher Mana村附近 (97.20%不适合).
- 灌危害指数和农民反证实了河水适合农业用途.
- 具体的灌指数显示,在各种地点的水位升高,包括Mujher Mana的SAR,%Na,KR和PS,以及其他地点的RSC,PI和MAR.
结论:
- 达莫达河的水需要在消费前进行大量的处理,特别是在季风期间和污染地区附近.
- 河水质量适合灌,但需要监测特定指数的局部问题.
- 未经处理的工业和城市废水排放是河流污染的主要驱动因素,需要立即干预以恢复水质.
相关概念视频
01:19Quality of Water
602
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
602
01:14Testing Water Quality
405
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
405
01:17Precipitation and Co-precipitation
4.4K
Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
4.4K
02:39Indicators
61.2K
Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example, phenolphthalein is a colorless substance in any aqueous solution with a hydronium ion concentration greater than 5.0 × 10−9 M (pH < 8.3). In more basic solutions where the hydronium ion concentration is less than 5.0 × 10−9 M (pH > 8.3), it is red or pink. Substances such as phenolphthalein, which can be used to determine the pH of a solution, are...
61.2K
02:41Responses to Drought and Flooding
12.2K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
12.2K