Analysis of Hydrogeochemical Characteristics and Origins of Chromium Contamination in Groundwater at a Site in Xinxiang City, Henan Province
Round 1
Reviewer 1 Report
The way of mixed citation style (full names/numbers) in the introduction (lines 53 to 74) is rather unusual and shoul be modified. Language check is suggested (water-rock interaction); especially in 2. (lines 100 to 139) are some peculiar wordings (tectonic denudation, powered sand, artificial mining, harmlessly treated...)
The pollutant correlation coefficient matices (figs. 4b and 5.b) should be commented shortly.
Line 341, PHREEQC software needs citation and version used.
Author Response
Please see the attachment. Thank you.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Explain all
- Abstract: Please re-written;
At the beginning of the abstract, there is an introduction to the necessity of doing the work, then the introduction of the study area, the purpose of the work, an introduction to the methods studied, and finally the results and suggestions.
- Introduction: You can add references such as:
1）Hydrochemical characterization and evaluation of groundwater quality in Dalgan basin, SE Iran.
2）Evaluation of groundwater quality and heavy metal pollution indices in Bazman basin, southeastern Iran.
3）Hydrogeochemistry study and groundwater quality assessment in the north of Isfahan, Iran.
4）Evaluation of groundwater quality and assessment of pollution indices for heavy metals in North of Isfahan Province, Iran.
5）Risk assessment and ranking of heavy metals concentration in Iran’s Rayen groundwater basin using linear assignment method.
- Description of study area: The study area should come before methodology.
* In this section: Reference is necessary.
* Figure 1: Image quality (resolution) is low. Describe in any form a, b, and c.
- Add: Material and methods come after study area.
* Please refer to multivariate statistical analyses in a short paragraph. You can use below paper and refer to it.
* Evaluation of Heavy Metals Concentration in Jajarm Bauxite Deposit in Northeast of Iran Using Environmental Pollution Indices.
- Result and discussion
Figures 4, and 5: Pollutant correlation coefficient matrix (software type??). Please describe it (Pearson or Spearman with the regard to data type (Normal or lognormal)).
* Which water type do you think is most associated with chromium contamination? In other words, is there a relationship between water type and chromium pollution?
* Is there a connection between pH and chromium contamination?
* Prepare a map to evaluate the risk at each sampling station based on the pollution rate for Cr element.
* Pollution control and management strategies should be justified according to the geological environment of the region and the results obtained from the assessments. Based on the results of the research, the necessary solutions to reduce environmental pollution should be provided the study area.
Comments for author File: Comments.pdf
Author Response
Please see the attachment. Thank you.
Author Response File: Author Response.pdf
