Lau Borus Water Quality Analysis Study (Lake Lau Kawar Outlet) After The Eruption Of Mount Sinabung In Naman Teran District, Karo Regency, North Sumatra Province

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Water Quality Analysis Study of Lau Borus Lake Outlet after the Eruption of Mount Sinabung in Naman Teran District, Karo Regency, North Sumatra Province

Introduction

The eruption of Mount Sinabung in Naman Teran District, Karo Regency, North Sumatra Province, has raised concerns about the impact of volcanic activity on the surrounding environment, including the water quality of nearby lakes and rivers. One such location is the Lau Borus Lake outlet, which is situated at the foot of Mount Sinabung. This study aims to investigate the water quality of Lau Borus after the eruption of Mount Sinabung using the pollution index method based on the Minister of Environment Regulation No. 115 of 2003 and Minister of Health Regulation No. 32 of 2017.

Background

Lau Borus Lake outlet is a vital water resource in the region, providing water for irrigation, drinking, and other domestic purposes. However, the eruption of Mount Sinabung has raised concerns about the potential impact of volcanic activity on the water quality of the lake outlet. The eruption of Mount Sinabung has been characterized by the release of large amounts of ash, gas, and rock into the atmosphere, which can affect the surrounding environment and water resources.

Methodology

This study used the pollution index method to analyze the water quality of Lau Borus after the eruption of Mount Sinabung. The pollution index method is a widely used approach for assessing the water quality of lakes and rivers. The study analyzed 11 parameters, including TDS, PH, Fe, SO4, COD, BOD, CU, CL, PB, NH3, and Total Coliform, at three sampling points chosen purposively. The sampling points were located at the inlet, outlet, and mid-point of the lake outlet.

Results

The results of the analysis showed that Lau Borus was categorized as "slightly polluted" with pollution index values ranging from 0.79 to 1.15. However, based on Minister of Health Regulation No. 32 of 2017, the total value of Coliform exceeds the quality standard limit. This shows that the water quality of the Borus is influenced by pollution of the total coliform bacteria that are above the standard.

Discussion

The results of the analysis suggest that the eruption of Mount Sinabung does not have a significant impact on the quality of water lau Borus during sampling. Volcanic dust from the eruption of Mount Sinabung is not a major factor in pollution. Further analysis shows that the direction of the wind during the eruption plays an important role. Wind eruption that leads to Lake Lau Kawar, and then to Lau Borus, has a smaller percentage compared to the opposite wind direction. The wind direction ratio leading to Lake Lau Kawar compared to the opposite direction is 1:8. This shows that the source of pollution in Lau Borus is likely to originate from other sources besides the eruption of Mount Sinabung.

Conclusion

This study provides a better understanding of the water quality of Lau Borus after the eruption of Mount Sinabung. The results of the analysis show that even though volcanic activity is not a major factor in pollution, there are other sources of pollution that need to be further investigated. It is essential to increase supervision of the source of pollution, especially related to the existence of total coliform bacteria, to maintain the quality of water and ensure the sustainability of water resources in the region.

Recommendations

Based on the findings of this study, the following recommendations are made:

  • Increase supervision of the source of pollution: It is essential to increase supervision of the source of pollution, especially related to the existence of total coliform bacteria, to maintain the quality of water and ensure the sustainability of water resources in the region.
  • Investigate other sources of pollution: Further investigation is needed to identify other sources of pollution that may be contributing to the poor water quality of Lau Borus.
  • Implement measures to reduce pollution: Measures should be implemented to reduce pollution in the lake outlet, such as improving waste management practices and reducing the amount of pollutants released into the environment.

Limitations of the Study

This study has several limitations that should be noted. Firstly, the study only analyzed 11 parameters, which may not be sufficient to fully understand the water quality of Lau Borus. Secondly, the study only sampled water from three locations, which may not be representative of the entire lake outlet. Finally, the study only investigated the impact of the eruption of Mount Sinabung on the water quality of Lau Borus, and did not consider other potential factors that may be contributing to the poor water quality.

Future Research Directions

Future research should aim to build on the findings of this study by investigating other sources of pollution that may be contributing to the poor water quality of Lau Borus. Additionally, further research should aim to identify measures that can be implemented to reduce pollution in the lake outlet and improve the overall water quality.
Frequently Asked Questions (FAQs) about the Water Quality Analysis Study of Lau Borus Lake Outlet after the Eruption of Mount Sinabung

Q: What is the purpose of the water quality analysis study of Lau Borus Lake Outlet after the eruption of Mount Sinabung?

A: The purpose of the study is to investigate the impact of the eruption of Mount Sinabung on the water quality of Lau Borus Lake Outlet and to identify potential sources of pollution that may be contributing to the poor water quality.

Q: What methods were used to analyze the water quality of Lau Borus Lake Outlet?

A: The study used the pollution index method based on the Minister of Environment Regulation No. 115 of 2003 and Minister of Health Regulation No. 32 of 2017 to analyze the water quality of Lau Borus Lake Outlet. The study analyzed 11 parameters, including TDS, PH, Fe, SO4, COD, BOD, CU, CL, PB, NH3, and Total Coliform.

Q: What were the results of the water quality analysis study?

A: The results of the study showed that Lau Borus Lake Outlet was categorized as "slightly polluted" with pollution index values ranging from 0.79 to 1.15. However, based on Minister of Health Regulation No. 32 of 2017, the total value of Coliform exceeds the quality standard limit.

Q: What is the significance of the wind direction ratio in the study?

A: The wind direction ratio is significant because it shows that the source of pollution in Lau Borus Lake Outlet is likely to originate from other sources besides the eruption of Mount Sinabung. The wind direction ratio leading to Lake Lau Kawar compared to the opposite direction is 1:8, which suggests that the wind direction plays an important role in the pollution of the lake outlet.

Q: What are the implications of the study's findings?

A: The study's findings have implications for the management of water resources in the region. The study suggests that the eruption of Mount Sinabung does not have a significant impact on the quality of water in Lau Borus Lake Outlet, but other sources of pollution may be contributing to the poor water quality. Therefore, it is essential to increase supervision of the source of pollution and to implement measures to reduce pollution in the lake outlet.

Q: What are the recommendations of the study?

A: The study recommends that:

  • Increase supervision of the source of pollution: It is essential to increase supervision of the source of pollution, especially related to the existence of total coliform bacteria, to maintain the quality of water and ensure the sustainability of water resources in the region.
  • Investigate other sources of pollution: Further investigation is needed to identify other sources of pollution that may be contributing to the poor water quality of Lau Borus Lake Outlet.
  • Implement measures to reduce pollution: Measures should be implemented to reduce pollution in the lake outlet, such as improving waste management practices and reducing the amount of pollutants released into the environment.

Q: What are the limitations of the study?

A: The study has several limitations that should be noted. Firstly, the study only analyzed 11 parameters, which may not be sufficient to fully understand the water quality of Lau Borus Lake Outlet. Secondly, the study only sampled water from three locations, which may not be representative of the entire lake outlet. Finally, the study only investigated the impact of the eruption of Mount Sinabung on the water quality of Lau Borus Lake Outlet, and did not consider other potential factors that may be contributing to the poor water quality.

Q: What are the future research directions?

A: Future research should aim to build on the findings of this study by investigating other sources of pollution that may be contributing to the poor water quality of Lau Borus Lake Outlet. Additionally, further research should aim to identify measures that can be implemented to reduce pollution in the lake outlet and improve the overall water quality.