Simulating Land Use Change in the Seoul Metropolitan Area after Greenbelt Elimination Using the SLEUTH Model

Table 4

Water quality scores.

	8	7	6	5	4	3	2	1	0
Index of water quality	—	—	—	—	Less than 0.01%	0.01–0.1%	0.1–1.0%	1.0–5.0%	More than 5.0%
Distance of intake station	Within upstream 2 km	More than upstream 2 km–within 5 km	More than upstream 2 km–within 5 km	More than upstream 2 km–within 5 km	More than upstream 2 km–within 5 km	More than upstream 2 km–within 5 km	More than upstream 2 km–within 5 km	More than upstream 30 km	Downstream
Permissible emission standards for wastewater	—	—	—	—	Clean		“Ga”		“Na”
Environmental standard for water quality	—	—	—	—	First grade	Second grade	Third grade	Fourth grade	Fifth grade

areas were notified by the Minister of Environment to conserve their water quality at the first grade of environmental water quality. areas were notified by the Minister of Environment to conserve their water quality at the second grade of environmental water quality. areas were notified by the Minister of Environment to conserve their water quality at the third, fourth, and fifth grades of environmental water quality.