Hanoi-Vietnam: Allowable values of parameters of pollutants in the flue gas of domestic solid waste incinerators

No.

Parameters of pollutants

Measurement unit

Concentration (C)

1

Total particulate matter

mg/Nm³

100

2

Hydrochloric acid, HCl

mg/Nm³

50

3

Carbon monoxide (CO)

mg/Nm³

250

4

Sulfur dioxide, SO₂

mg/Nm³

250

5

Nitrogen oxide (NO_x) (expressed as NO₂)

mg/Nm³

500

6

Mercury and its compounds (Hg)

mg/Nm³

0.2

7

Cadmium and its compounds (Cd)

mg/Nm³

0.16

8

Lead and its compounds (Pb)

mg/Nm³

1.2

9

Total dioxin/furan (PCDD/PCDF)

ngTEQ/Nm³

0.6

Reference content of oxygen in the flue gas is 12%.

Region

Coefficient K_v 

Region 1

Special Class urban areas⁽¹⁾ and Class I urban areas⁽¹⁾; specialized forests⁽²⁾; domestic solid waste incinerators located in areas below 02 km away from the boundaries of the said areas.

0.6

Region 2

Class II, III, and IV urban areas(1); suburban areas of Special Class areas and Class I areas the distance of which from the boundaries of urban areas are ≥ 02 km; domestic solid waste incinerators located in areas below 02 km away from the boundaries of the said areas.

0.8

Region 3

Industrial parks; Class V urban areas⁽¹⁾; suburban areas of Class II, III, and IV urban areas the distance of which from the boundaries of urban areas are ≥ 02 km; domestic solid waste incinerators located in areas below 02 km away from the boundaries of the said areas⁽³⁾.

1.0

Region 4

Rural areas

1.2

Region 5

Mountainous rural areas

1.4

Notes:

 ⁽¹⁾ Urban areas are determined according to the Government’s Decree No. 42/2009/ND-CP dated May 07, 2009 on classification of urban areas.

 ⁽²⁾ Specialized forests are determined according to the Law on Forest Protection and Development dated December 14, 2004, including: national parks, sanctuaries, landscape protection zones, forests serving scientific research and experiments.

 ⁽³⁾ If the distance from the emission source to 02 areas or more is smaller than 02 km, the smallest regional coefficient (K_v) shall apply.