Groundwater manganese concentration from the Chandrapur district of Central India was assessed during winter 2012. Groundwater sampling was carried out by grab sampling method in 36 sampling locations comprised of 34 hand pumps and two dug wells. Groundwater samples for manganese were preserved by adding conc. Groundwater manganese concentrations were estimated by Inductively Coupled Plasma-Optical Emission Spectroscopy. Groundwater iron concentration from the study area during winter 2012 was in the range of 0.0015-1.85 mg/L (SD±0.36). Groundwater manganese concentration in seven water samples were above the permissible desirable limit of Indian Standards for drinking water (IS 10500:2012, desirable limit for Mn, 0.3 mg/L max.).

This elevated concentration of manganese in groundwater from the study area can be attributed to weathering of mineral bearing rocks, mining activities and also to some extent to anthropogenic activities. Spatial distribution of manganese was observed in the study area. Further, shallow, deep and very deep well water had variable manganese concentration. Upper earth surface had lower manganese concentration, however present, can be attributed to anthropogenic activities whereas deeper earth surface had higher manganese concentration that can be assigned to geogenic origin.

Extrait

INTRODUCTION
STUDY AREA
- Climate and Rainfall
- Geomorphology
- Hydrogeology
- Geology
- Ore mineralization
- Water resources
MATERIAL AND METHODS

Water sampling
Analytical procedures
Questionnaire survey
Statistical analysis

RESULTS AND DISCUSSION
CONCLUSION
REFERENCES

Objectives and Key Themes

The main objective of this study is to understand the regional groundwater quality in Chandrapur district, Central India, focusing on manganese content, particularly in relation to coal mining activities. The study aims to predict the spatial distribution of manganese concentration in the region and assess its quality with respect to metal content.

Spatial distribution of groundwater manganese in Chandrapur district.
Relationship between manganese concentration and geological factors.
Influence of anthropogenic activities (e.g., mining) on manganese levels.
Assessment of groundwater quality concerning manganese concentration for drinking purposes.
Comparison of manganese levels across different well depths.

Chapter Summaries

INTRODUCTION: This chapter provides background information on manganese, its abundance in the environment, and its importance for various organisms. It reviews existing literature on groundwater manganese concentrations globally, highlighting studies that illustrate varying manganese levels and their potential sources (both geogenic and anthropogenic). The chapter establishes the significance of studying manganese contamination in groundwater, especially in regions with mining activities, setting the stage for the research conducted in Chandrapur district.

STUDY AREA: This section details the geographical and geological characteristics of the Chandrapur district, providing essential context for the groundwater analysis. It describes the climate, rainfall patterns, geomorphology, hydrogeology, and geology of the region, including information on ore mineralization and water resources. Understanding these factors is crucial for interpreting the spatial distribution of manganese in the groundwater and for identifying potential sources of contamination. The chapter likely emphasizes the importance of the region's geology and mining activities as potential contributors to manganese concentrations in groundwater.

MATERIAL AND METHODS: This chapter outlines the methodology employed in the study. It describes the groundwater sampling techniques, including the number of locations and types of wells sampled. The analytical procedures used to measure manganese concentrations (ICP-OES) are detailed, ensuring the reproducibility and validity of the results. The chapter likely also explains any statistical analyses used to interpret the data and assess the spatial distribution of manganese. This thorough description of methods allows for a critical evaluation of the study's findings.

RESULTS AND DISCUSSION: This chapter presents the findings of the study, including the measured manganese concentrations in the groundwater samples. It analyzes the spatial distribution of manganese, examining variations across different well depths and locations. The discussion section connects these findings to the geological and anthropogenic factors described earlier, explaining the potential sources of manganese contamination and why some areas exhibit higher concentrations than others. The chapter likely compares the measured manganese levels to drinking water standards and discusses the implications of the elevated concentrations found in some samples.

Keywords

Central India, Chandrapur, Groundwater quality, Manganese, Heavy metal, Geogenic, Anthropogenic, Coal mining, Water pollution, ICP-OES, Spatial distribution.

FAQ: Groundwater Quality in Chandrapur District, Central India

What is the main objective of this study?

The primary objective is to understand the regional groundwater quality in Chandrapur district, focusing on manganese content, especially its relation to coal mining activities. The study aims to predict the spatial distribution of manganese and assess its quality regarding metal content.

What are the key themes explored in this study?

Key themes include the spatial distribution of groundwater manganese in Chandrapur district; the relationship between manganese concentration and geological factors; the influence of anthropogenic activities (like mining) on manganese levels; assessing groundwater quality concerning manganese for drinking; and comparing manganese levels across different well depths.

What geographical and geological aspects of the study area are discussed?

The study details the climate, rainfall patterns, geomorphology, hydrogeology, geology (including ore mineralization), and water resources of Chandrapur district. This provides context for interpreting manganese distribution and identifying potential contamination sources.

What methodologies were used in this research?

The study employed groundwater sampling techniques, specifying the locations and well types sampled. Manganese concentrations were measured using ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry). Statistical analyses were used to interpret data and assess manganese's spatial distribution.

What are the key findings and their discussion?

The results present measured manganese concentrations, analyzing their spatial distribution across different well depths and locations. The discussion links these findings to geological and anthropogenic factors, explaining potential contamination sources and variations in manganese levels. A comparison to drinking water standards and the implications of elevated concentrations are included.

What are the key topics covered in each chapter?

The Introduction provides background on manganese, its environmental abundance, and its importance. It reviews existing literature on groundwater manganese globally. The Study Area chapter details the geographical and geological characteristics of Chandrapur district. The Materials and Methods chapter outlines the study's methodology, including sampling, analysis, and statistical procedures. The Results and Discussion chapter presents the findings and their interpretation in relation to geological and anthropogenic factors. Finally, the study includes a Conclusion and References section.

What keywords are associated with this study?