## 5 Conclusions  
In this work, a feasibility analysis was conducted on the use of atmospheric water generators (AWGs) as a possible solution to water pollution and scarcity in the Matehuala, SLP, Mexico region, which has a lot of mining activity. It was found that the main sources of As exposure in the region are food, soil and water, especially in the hydraulic network system that supplies the region's population. Much of the local and rural population suffers water shortages. The following conclusions are obtained from the analysis carried out in our work:  
* Population growth in the region is inevitable, and the demand for fresh water will increasingly be a matter of government priority. Current figures show that despite the growth of the population and the demand for water, the volumetric production has remained relatively constant for 10 years. In 2000, there were 64,206 inhabitants with a volumetric water production that could supply 6, 274,629 m\({}^{3}\). By 2017, there were over 99,015 inhabitants, while volumetric water production was 6,641,262 m\({}^{3}\). In 2000, there were 18,159 water intakes compared to 28,576 in 2018. This will gradually lead to the search for new technologies to provide water.
* The region of Matehuala, SLP, Mexico has the necessary environmental conditions for the use of AWGs for the harvesting of atmospheric air water, with an average relative humidity of approximately 60%. This value is adequate from the point of view of functionality, economy and viability. In addition to the above, solar (annual average of 5.5 PSH and 720 W/m\({}^{2}\) max) and wind (average annual speeds of 2.2 m/s to 4.1 m/s) energy sources are viable.
* Using the mathematical model developed in this work and evaluated with the climatic conditions of the region, monthly water harvesting was determined. January had the lowest harvest, with minimum quantities of 3.6 to 0.89 L/day, whereas August had the greatest harvest, with maximum amounts of 18 to 3.9 L/day.
* Water production costs were obtained in the range of $ 0.0093 and $ 0.038 USD per litre of water captured by the AWG, showing that the costs obtained per litre harvested are affordable to any type of population that lacks water services.  
In general, the region of Matehuala, SLP, Mexico was found to be a feasible area for the use of atmospheric water generators (AWGs) for capturing water from atmospheric air. The implementation of AWGs will help the preservation of ecosystems and the environment in general, benefiting people or communities with limited water supply.  
**Author Contributions:** [PERSON], [PERSON] and [PERSON] developed the idea and conceptualization of the study; [PERSON] and [PERSON] conceived and wrote the paper together; [PERSON]; [PERSON] and carried out the methodology; [PERSON] and [PERSON] contributed materials and analysis tools. All the co-authors contributed to the discussion of the results and preparation of the manuscript.  
**Funding:** This research received no external funding.  
**Acknowledgments:** We thank the General Coordination of the National Meteorological Service (CGSMN) of the National Water Commission (CONAGUA) for providing us with the historical data of the climate in the region of Matehuala, SLP, records from the network of automatic weather stations (EMAs).  
**Conflicts of Interest:** The authors declare no conflict of interest.