Ghana
Environment and Health Protection – Requirements for Ambient Air Quality and Point Source/Stack Emissions
Standard 1236 of 2019
- Published on 31 December 2019
- Commenced
- [This is the version of this document from 31 December 2019.]
- [The publication date of this work could not be ascertained. We used the date 31 December 2019 because the work was published during the course of the year 2019.]
Table 1: Requirements for point source/stack emission | |||
---|---|---|---|
# | Pollutants | Maximum limits | Test method |
1. | Solid fuels | ||
a. | Sulphur Dioxide (mg/Nm3)* | 200 | USEPA Method 6C |
b. | Oxides of Nitrogen (mg/Nm3) | 200 | ISO 10849 |
c. | Particulate Matter (mg/m3) | 50.00 | ISO 9096 |
2. | Liquid fuels | ||
a. | Sulphur Dioxide (mg/Nm3) | 500 | USEPA Method 6C |
b. | Oxides of Nitrogen (mg/Nm3) | 400 | ISO 10849 |
c. | Particulate Matter (mg/m3) | 50.00 | ISO 9096 |
3. | Gaseous fuels | ||
a. | Sulphur Dioxide (mg/Nm3) | 100 | USEPA Method 6C |
b. | Oxides of Nitrogen (mg/Nm3) | 320 | ISO 10849 |
c. | Particulate Matter (mg/m3) | 20.00 | ISO 9096 |
4. | Electrical energy | ||
a. | Sulphur Dioxide (mg/Nm3) | 200 | USEPA Method 6C |
b. | Oxides of Nitrogen (mg/Nm3) | 200 | ISO 10849 |
c. | Particulate Matter (mg/m3) | 50.00 | ISO 9096 |
5. | Incinerators | ||
a. | Sulphur Dioxide (mg/Nm3) | 200 | USEPA Method 6C |
b. | Oxides of Nitrogen (mg/Nm3) | 400 | ISO 10849 |
c. | Particulate Matter (mg/m3) | 70.00 | ISO 9096 |
6. | Other parameters (that may apply | ||
a. | Carbon Monoxide (mg/Nm3) | 100 | USEPA Method 10 |
b. | Hydrochloric Acid (HCl) (mg/Nm3) | 60.00 | USEPA Method 0050 |
c. | Hydrogen Fluoride (mg/Nm3) | 4.00 | ISO 15713 |
d. | Mercury and mercury compounds (mg/Nm3) | 0.03 | USEPA Method 29 |
e. | Particulate Lead (mg/m3) (expressed as lead) | 0.50 | USEPA Method 29 |
Note:1)Electrical Energy usage include induction/electric arc furnaces, dryers, oven, kilns, Alumina & iron smelting among others.2)*N represents Normal atmosphere and pressure |
Table 2 – ambient air pollutants -Maximum limits | ||||
---|---|---|---|---|
# | Substance | Maximum limits | Averaging time | Test method |
1 | Sulphur Dioxide(SO2), µg/m3 | 520 | 1 hour | AS 3580.4.1 |
50 | 24 hours | |||
2 | Nitrogen Oxides (measured as NO2), µg/m3 | 250 | 1 hour | ISO 7996 |
150 | 24 hours | |||
3 | Total Suspended Particulate matter, µg/m3 | 150 | 24 hours | ASTM D4096 - 17 |
80 | 1 year | |||
4 | PM10, µg/m3 | 70 | 24 hours | ASTM D4096 - 17 |
70 | 1 year | |||
5 | PM2.5, µg/m3 | 35 | 24 hours | ASTM D4096 - 17 |
6 | Black Carbon, µg/m3 | 25 | 24 hours | ASTM D6602 -13 |
7 | Benzene, µg/m3 | 5 | 1 year | ASTM D5466 - 15 |
8 | Lead, µg/m3 | 0.5 | 1 year | ISO 9855 |
1 | 24 hours |
Table 3 – Fenceline air pollutants – Maximum limits | ||||
---|---|---|---|---|
# | Substance | Maximum limits | Averaging time | Test method |
1 | Carbon Monoxide, mg/m3 | 100 | 15 minutes | ASTM D3162-12 |
60 | 30 minutes | |||
30 | 1 hour | |||
10 | 8 hours | |||
2 | Hydrogen Sulphide, µg/m3 | 150 | 24 hours | ASTM D4323 - 15 |
3 | Hydrogen Cyanide, µg/m3 | 220 | 24 hours | USEPA Method 426 |
4 | Hydrogen Chloride, µg/m3 | 20 | 24 hours | ASTM D7773-12 / ISO 21438-2 |
5 | Cadmium, ng/m3 | 3 | 1 year | ISO 9855 |
6 | Sulphur Dioxide (SO2), µg/m3 | 150 | 24 hours | AS 3580.4.1 |
7 k | Nitrogen Oxides (measured as NO2), µg/m3 | 150 | 24 hours | ISO 7996 |
8 | Total Suspended Particulate, µg/m3 | 150 | 24 hours | ASTM D4096 - 17 |
100 | 1 year | |||
9 | PM10, µg/m3 | 70 | 24 hours | ASTM D4096 - 17 |
70 | 1 year | |||
10 | PM2.5, µg/m3 | 35 | 24 hours | ASTM D4096 - 17 |
11 | Black Carbon, µg/m3 | 25 | 24 hours | ASTM D6602 -13 |
12 | Benzene, µg/m3 | 5 | 1 year | ASTM D5466 - 15 |
13 | Lead, µg/m3 | 1 | 24 hours | ISO 9855 |
0.5 | 1 year | |||
14 | Mercury (and its derivatives compounds), ng/m3 µg/m3 | 15 | 24 hours | ISO 17733 |
1 | 1 year | |||
15 | Cadmium, ng/m3 | 5 | 1 year | ISO 9855 |
16 | Manganese, µg/m3 | 1 | 24 hours | ISO 9855 |
17 | Toluene, mg/m3 | 8 | 24 hours | ASTM D5466 - 15 |
18 | Arsenic, ng/m3 | 15 | 24 hours | USEPA Method 29 |
19 | Fluoride, µg/m3 | 10 | 24 hours | ASTM D3266-91 |
20 | Ozone, µg/m3 | 120 | 8 hours | ISO 13964 |
21 | Nickel, ng/m3 | 20 | 1 year | USEPA Method 29 |
22 | PAH, ng/m3 | 1 | 1 hour | ASTM D6209 - 13 |
23 | Xylene, µg/m3 | 700 | 1 year | |
24 | Dichloromethane (Methylene chloride), mg/m3 | 3 | 24 hours | OSHA Method No 80 |
25 | Trichloroethane, mg/m3 | 0.7 | 24 hours | OSHA Method No 14 |
26 | Dioxins/Furans, pg TEQ/m3 | 0.1 | 24 hours | USEPA 23 |
0.6 | 1 year | |||
27 | Total PCB, pg TEQ/m3 | 0.6 | 24 hours | GC-MS |
0.035 | 1 year |