Environmental impact analysis of Yen My cotton factory expansion
Nguyen, Huu Huan (2020)
Nguyen, Huu Huan
2020
All rights reserved. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2020061018192
https://urn.fi/URN:NBN:fi:amk-2020061018192
Tiivistelmä
Eight March Textile Company Limited wished to increase the cotton production yield so they proposed a project plan to expand the current Yen My cotton factory with the construction of the new factory next to it. The objective of this thesis is to predict and evaluate possible environmental impacts, to support the development of the environmental impact assessment of the project.
There are four steps to predict and evaluate the impacts. Firstly, an environmental baseline study was conducted to understand the current physical, biological, and social environment quality before the construction begins. In addition, the value of the receptor environmental component is evaluated based on their importance and their reversibility. Data for this study were collected with the help of the Institute of Environmental Technology. Secondly, impact identification was done using a matrix method to list the possible impacts from the construction activities. Then, the impacts were predicted their magnitude with the quantitative method (calculation of the amount of wastewater content, emissions, and noise level) and qualitative method (rating of impacts based on a set of criteria). Finally, the impact magnitude was cross-referenced with the value of the receptor environmental component to evaluate the significance as “major”, “moderate” or “minor” and conclude whether they need further mitigation measures.
The results suggest that the impact from activities such as transportation and construction work to the air environment and surface water environment are evaluated of moderate to major significance, which means it is required to have further mitigation measures to reduce the impact further or alternative proposal to cause less impact. Other impacts on noise level, soil environment, biological environment, and social environment of the area have minor significance, indicating the planned mitigation measures are sufficient to reduce the impacts to a safe level. Most of the analysis was done with qualitative methods, which can be very subjective, however, considering the lack of resources and data, it is an acceptable method. Therefore, this assessment can be used as a broad overview of the impacts to support the development of the environmental impact assessment for the project in later stages.
There are four steps to predict and evaluate the impacts. Firstly, an environmental baseline study was conducted to understand the current physical, biological, and social environment quality before the construction begins. In addition, the value of the receptor environmental component is evaluated based on their importance and their reversibility. Data for this study were collected with the help of the Institute of Environmental Technology. Secondly, impact identification was done using a matrix method to list the possible impacts from the construction activities. Then, the impacts were predicted their magnitude with the quantitative method (calculation of the amount of wastewater content, emissions, and noise level) and qualitative method (rating of impacts based on a set of criteria). Finally, the impact magnitude was cross-referenced with the value of the receptor environmental component to evaluate the significance as “major”, “moderate” or “minor” and conclude whether they need further mitigation measures.
The results suggest that the impact from activities such as transportation and construction work to the air environment and surface water environment are evaluated of moderate to major significance, which means it is required to have further mitigation measures to reduce the impact further or alternative proposal to cause less impact. Other impacts on noise level, soil environment, biological environment, and social environment of the area have minor significance, indicating the planned mitigation measures are sufficient to reduce the impacts to a safe level. Most of the analysis was done with qualitative methods, which can be very subjective, however, considering the lack of resources and data, it is an acceptable method. Therefore, this assessment can be used as a broad overview of the impacts to support the development of the environmental impact assessment for the project in later stages.