TITLE:
Assessing the Impact of Industrial Zones on the Environmental Pollution in Hai Phong’s Coastal Areas, Vietnam
AUTHORS:
Pham Thi Song Thu, Doan Quang Tri
KEYWORDS:
Coastal Areas, Water Quality, MIKE 21, Industrial Zones, Costal Pollution
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.7,
July
12,
2023
ABSTRACT: Pollution in the coastal areas negatively affects
biochemical indicators of seawater, human
health and marine organisms. Hai Phong is a coastal city of Vietnam with the development of socio-economic
activities, representing through an increasing number of industrial
zones. This study is to evaluate the
pollution of large industrial zones in Hai Phong city using numerical models. The numerical simulation (MIKE 21 SW, FM, ECO
Lab) models were applied to simulate the wave propagation, hydraulic
regime, water quality in coastal Hai Phong area. The MIKE 21 ECO Lab model was
used to evaluate sources of waste from the large coastal industrial zones to
some aquaculture zones. The calibration and validation results of wave
propagation and the hydrodynamic models were resonably good, with Nash
coefficient ranging from 0.65 to 0.90 and a percent bias (PBIAS) from 5.6% to
9.4%. The simulation results of water quality and concentration of pollutants
(DO, BOD5, COD, TSS, Fe, and Coliform) in 2023 at the aquaculture
locations show that the BOD5, COD, and TSS concentrations were
higher than the allowable limits stated in the national technical regulation on
surface water quality (QCVN 08:2023/BTNMT) and lower than the allowable limits
stated in the national technical regulation on marine water quality (QCVN
10:2023/BTNMT). The outcomes of this study will provide more information to
support managers to come up with a better socio-economic development plan for
Hai Phong city to achieve sustainable development.