Guizhou Cultural and Natural Heritage Protection and Development Project Environmental Impact Assessment Guiyang Hydropower Investigation Design & Research Institute China Hydropower Engineering Consultation Group Corporation September 18



Download 1.45 Mb.
Page11/20
Date19.05.2018
Size1.45 Mb.
#48929
1   ...   7   8   9   10   11   12   13   14   ...   20

Environmental Management




      1. Solid Waste Management

The cities in Guizhou have limited enironmental sanitary capacity to cope with the municipal solid wastes. As of 2005, Guizhou had a total of eight municipal solid waste landfills, located in municipalities such as Guiyang, Zunyi, Anshun, Liupanshui and Kaili. Together they have a total capacity of 4,112 ton/day. According to Guizhou Enviornmental Status Bullitin (2005), the average solid waste treatment rate in 2005 is 26.7%. It implies that a significant volume of solid waste is being disposed by other means, which are generally open dumping , tipping down hills lopes, burning and using as compost or animal feed.


All landfills are located in cities or urban centers in counties, and there is no formal solid waste collection or arrangements for disposal of solid waste in rural area. It is a common situation of solid waste management in rural areas in China as a whole.
Traditionally, the people in rural areas in Guizhou adopt an environment friendly approach to manage their domestic solid waste. As the economic level of the households in the rural area is very low, the constituents of domestic solid waste vary largely from that in urban areas in China, with more inorganics such as ash and virtually waste food and metal. The domestic solid wastes generated from each household are often hand sorted at source and organics composted with night soils for agricultural application, while the part of inorganics that can be reused or recycled such as paper and glass are collected and sold to the local recyclables collection stations. The remaining inorganics are mainly ash that is often used to spread in the pigsties.
As aknowledged in the Master Plan, the increased solid waste amount resulting from tourism development in rural areas has been considered in the local environmental infrastructure development plans. In the centers of county/town, new sanitary landfills are being planned to cope with the problem of solid wastes.


      1. Wastewater Treatment

Guizhou has a very limited capacity for municipal wastewater treatment. By 2007, there are only 16 completed municipal wastewater treatment plants in the province, providing the total service capacity of 0.57 million m3/d which accounts for 29.02% of the total municipal wastewater flow per day in the province. The treatment capacity is largely concentrated in major cities, such as 4 WWTPs in Guiyang (34.71% treatment ratio), 1 in Liupanshui (33.17% treatment ratio), 7 in Zunyi (45.14% treatment ratio), 1 in Bijie (45.63% ratio), 1 in Qiandongnan Prefecture (20.81%0 and 2 in Qianxinan Prefecture (24.26%).


The wastewater treatment is rare in rural areas in the province. Most of the wastewater is discharged directly into adjacent wasters, causing severe pollution in some reaches of river, particularly in planting seasons.

    1. Environmental Baseline in Project Cities




      1. Environmental Concerns

Most construction sites of the project are located in the rural areas without industrial pollutantion sources or the pollution from sewage discharge, air pollution, noise pollution and solid waste problems. There are diversified climate, topography, landform and minority culture, which constitute the precious tourism resource. However, a number of environmental concerns are rising from the recent development in the rural areas, they are:


A. Environmental Pressure due to Population Growth
The regions involved in this project are typical karst territory with mountainous, rugged terrain and underground rivers, in which condition the forest grow slowly and need a long period to be resumed once they have been destroyed. After the field investigation, it is found that most of the forests in the regions are over-exploited, the forest coverage tends to decrease, the degradation of soil erosion and desertification is being a great envirnmental concern..
The arable land is limited while the population is large in the regions. All the residents and the arable land are concentrated in narrow valleys. The demand for arable land will increase due to the growth of population, which cause overgrazing, excessive cutting and reclamation of forest.
B. Inadequate Infrastructure Service
The investment in facilities of traffic, energy and sanitation is limited. The traffic condition is terrible in many minority villages. Because electrical facilities are limited, the residents are used to getting energy from firewood, which diminishes the ecological balance. Most of the villages are lack of garbage disposal facilities, even the livestock are raised very close to the house.
The regions involved in this project are almost located in remote areas, where is lack of access to market information and qualified personnel. The education has been developed rapidly recently. More and more people get good education in these regions, but the education service level is still lower than the average level of China. The lack of education and information is the most important factor which restrict the development of local society.
The detailed environmental status of the regions involved in the project is listed in annexed Table 2.

      1. Environmental Monitoring Results

The EA team was engaged the environmental monitoring stations of Anshun City, Qiandongnan prefecture and Qianxinan prefecture to carry out the environmental monitoring program on water environment, ambient air and acoustic environment at the project areas in November 2007. The monitoring results of each component area are given in the following.


A. Monitoring Results of Anshun City


  • Surface Water Quality

The surface water quality data of Benzai section in Yunfeng River of Jiuzhou, Anshun City was monitered and provided by Anshun Environment Monitoring Station in December, 2007, as listed in the Table 5.8-1.


According to the Surface Water Environment Quality Standard (GB3838-2002), the water quality indexs of DO, NH3-N can meet the requirement of Class II, and other indexs can meet the requirement of Class I. As a whole, the water quality of the section can meet the requirement of Class I and comply with the environmental function requirement.


Table 5.8-1 Surface Water Quality of Yunfeng River Section unit: mg/l

Serial number

Monitoring parameters

Benzai section

Class

Surface Water Environment Quality Standard (GB8978-2002)

12.4

12.5

Average

/

I

II

III

1

Temperature

(oC)
11

11

11

/

/

/

/

/

2

pH

8.16

7.96

/

I

/

6~9

6~9

6~9

3

DO

6.02

6.28

6.15

II

≥

7.5

6

5

4

Permanganate index

0.65

1.22

0.94

I

≤

2

4

6

5

CODcr

3.19

3.88

3.54

I

≤

15

15

20

6

BOD5

0.6

0.35

0.48

I

≤

3

3

4

7

NH3-N

0.23

0.17

0.2

II

≤

0.15

0.5

1

8

Fecal Coliform

(one/l)


70

92

80

I

≤

200

2000

10000




  • Ambient Air Quality

The Ambient air quality data of Benzai village in Jiuzhou, Anshun City were monitered and provided by Anshun Environment Monitoring Station in December, 2007, as listed in Table 5.8-2. According to the Ambient Air Quality Standard (GB3095-1996), the ambient air quality can meet the requirement of Class II and comply with the environmental function requirements.





Table 5.8-2 Ambient Air Quality in Benzai Village in Jiuzhou

Date of Sampling

NO2(mg/m3)

TSP(mg/m3)

December 4th

0.004

0.133

December 5th

0.007

0.105

December 6th

0.008

0.086

Class

II

II

GB3095-1996 Class II (daily average)

≤0.12

≤0.30



The acoustic environment quality data of Benzai village in Jiuzhou, Anshun City were monitered and provided by Anshun Environment Monitoring station in December, 2007, as listed in Table 5.8-3. According to the Urban Area Noise Standard (GB3096-93), the acoustic environment quality can meet the requirement of Class II which comply with the environmental function requirements.





Table 5.8-3 Noise monitoring result of Benzai village in Jiuzhou Unit: dB

Date

Monitering result (Leq)

Urban Area Noise Standard (GB3096-93) Class II

Daytime (12:00)

Nighttime (22:00)

Daytime

Nighttime

December 4th

49.6

43.9

60

50



B. Monitoring Results of Qiandongnan Prefecture


  • Surface Water Quality

The surface water quality data of Qiandongnan Prefecture were monitered and provided by Qiandongnan Environment Monitoring Station in November, 2007, as listed in Table 5.8-4. According to the Surface Water Environment Quality Standard (GB3838-2002), the surface water quality indexs of pH, DO, NH3-N, COD, BOD5, Permanganate Index and Fecal Coliform in Xiaohuang village of Congjiang County, Shiqiao village of Danzai County, Longli ancient town of Jinping County, Sanbao village of Rongjiang County, Sanmentang village of Tianzhu County can meet the requirement of Class II and comply with the environmental function requirements.




Table 5.8-4 Surface Water Quality of Qiandongnan Prefecture unit: mg/l

Serial number

Parameters

Xiaohuang

Shiqiao

Longli ancient town

Sanbao

Sanmentang

11.20

11.21

11.13

11.14

11.18

11.19

11.15

11.16

11.20

11.21

1

Temperature

(oC)
19

19

17.5

17.5

18.5

18.5

19.5

19.5

18

18

2

pH

6.9

6.9

6.8

6.9

6.9

6.9

7.1

7.1

7.1

7

3

DO

7.6

7.7

7.6

7.8

7.7

7.8

7.9

7.7

7.6

7.4

4

Permanganate index

2.54

2.63

0.92

0.78

1.7

1.61

0.94

0.96

1.62

1.55

5

CODcr

5L

5L

5L

5L

6.7

6.7

5L

5L

5L

5L

6

BOD5

1.1

1.1

1.1

1.1

1

1

1.1

1

1.1

1

7

NH3-N

0.177

0.184

0.034

0.032

0.044

0.034

0.037

0.044

0.028

0.036

8

Fecal Coliform

(one/l)


1650

1120

450

310

550

680

650

510

460

660

9

Flux (m3/s)

0.08

0.16

0.02

6.5

226




  • Ambient Air Quality

The Ambient air quality data of Qiandongnan Prefecture were monitered and provided by Qiandongnan Environment Monitoring Station from November 26th to December 6th, 2007, as listed in Table 5.8-5. According to the Ambient Air Quality Standard (GB3095-1996), the ambient air quality indexs of TSP, NO2 of Xintuan drum-tower in Liping County, the Samu river scenic area of Shibing County can meet the requirement of Class I and comply with the environmental function requirements.


Table 5.8-5 Ambient Air Quality of Qiandongnan Prefecture unit: mg/l

Area

items

Date

Average value

Xintuan

drum-tower
NO2

11.26

0.026

11.27

0.024

11.28

0.026

TSP

12.06

0.108

12.07

0.112

12.08

0.112

Samu river

scenic area
NO2

11.26

0.011

11.27

0.01

11.28

0.01

TSP

11.26

0.042

11.27

0.042

11.28

0.042

GB3095-1996 Class I

NO2≤0.08；TSP≤0.12




  • Acoustic Environment Quality

The acoustic environment quality data of Qiandongnan Prefecture were monitered and provided by Qiandongnan Environment Monitoring Station from November 26th to December 6th, 2007, as listed in Table 5.8-6. According to the Urban Area Noise Standard (GB3096-93), the acoustic environment quality of Xintuan drum-tower in Liping County can meet the requirement of Class I and comply with the environmental function requirements. The acoustic environment quality of Samu river scenic area of Shibing County can meet the requirement of Class II and does not comply with the environmental function of Class I.


Table 5.8-6 Acoustic Enviornemnt Quality of Qiandongnan Prefecture Unit: dB(A)

Area

Date

LAeq

Daytime

Nighttime

Xintuan

drum-tower
2007.12.07

56.5

35.3

2007.12.08

58.5

30

Samu river

scenic area
2007.11.26

51.1

46.8

2007.11.27

53.8

51.6



C. Monitoring ResultS of Qianxinan Prefecture
The environment quality date of Qianxinan Prefecture were monitered and provided by Guizhou Environment Monitoring Station from January 8th to 11th , as listed in Table 5.8-7~5.8-9. According to the Surface Water Environment Quality Standard (GB3838-2002), Ambient Air Quality Standard (GB3095-1996) and Urban Area Noise Standard (GB3096-93), the surface water quality can meet the requirement of Class III, the amient air quality can meet the requirement of Class II, and the acoustic environment can meet requirement of Class II, which comply with the environmental function requirements.


Table 5.8-7 Surface Water Quality of Qianxinan Prefecture unit: mg/l

Section

Date

pH

DO

Permanganate index

CODCr

BOD5

NH3-N

Fecal Coliform

(one/l)


Bike village

1.8

8.02

7.1

2.3

8.9

2.7

0.34

460

1.9

7.99

7

3.6

9.8

2.6

0.4

230

GB3838-2002 Class III

6~9

≥5

≤6

≤20

≤4

≤1

≤10000




Table 5.8-8 Ambient Air Quality of Qianxinan Prefecture

Position

Date

NO2(mg/m3)

TSP(mg/m3)

Bike village Committee

1.8

0.015

0.177

1.9

0.015

0.118

1.10

0.015

0.1

GB3095-1996 Class I

NO2≤0.08；TSP≤0.12




Table 5.8-9 Acoustic Environemnt Quality of Qiandongnan Prefecture Unit: dB(A)

Point

Date and time

Noise source

LAeq

Bike village Committee

1.9

9:38

Daily life and traffic

51.6

22:41

Daily life

40.5

1.10

9:26

Daily life and traffic

57.5

23:02

Daily life

35.6





  1. Download 1.45 Mb.

    Share with your friends:
1   ...   7   8   9   10   11   12   13   14   ...   20



The database is protected by copyright ©ininet.org 2024
send message
    Main page
Guide
Instructions
Report
Request
Review