GB 14554-1993Emission standards for odor pollutants (English PDF)

1.1 Subject content

This Standard specifies the maximum emission limit at one time of eight odor pollutants, the odor concentration limit of complex odor substances, and the factory concentration limit at boundary of fugitive emission sources in chronological order.

1.2 Scope of application

This Standard is applicable to the emission management of all the organizations that emit odor gases to the atmosphere throughout the country and the garbage dumps, the environmental impact assessment, design and completion acceptance of the construction projects, and the emission management after the completion of construction.

3.1 Odor pollutants

The gaseous substances that stimulate the olfactory organs and thus cause unpleasantness and damage to the living environment.

3.2 Odor concentration

It refers to the dilution ratio required for diluting the odor gases (including the peculiar smell) with odorless air until it's just odorless.

4.1 Standard grading

The factory standard values at boundary of odor pollutants in this Standard are divided into three grades.

4.2 Standard values

4.2.1

The factory standard values at boundary of odor pollutants refer to the limits of fugitive emission sources. SEE Table 1.

5.1

For the odor pollutants discharged by the pollutant discharging organizations (including the leakage and fugitive emission), the maximum detection value at one time (including the odor concentration) at the specified measuring points at boundary of the pollutant discharging organizations (with no other interference factors) shall be less than or equal to the factory standard values at boundary of odor pollutants.

5.3

The odor pollutants discharged and distributed by the pollutant discharging organizations through drainage and the odor concentration must be less than or equal to the factory standard values at boundary of odor pollutants.

6.1 Monitoring of organized emission sources

6.1.1

The minimum height of the exhaust cylinders shall not be less than 15m.

6.1.4

The sampling frequency of the organized emission sources shall be determined according to the production cycle. For the production cycle within

8h, SAMPLE once every 2h; for the production cycle of greater than 8h,

SAMPLE once every 4h. TAKE the maximum measured value.

6.2 Monitoring of fugitive emission sources

6.2.1 Sampling point

The sampling points for monitoring at boundary of factories shall be set on the downwind side at boundary of factories, or on the boundary line in the direction with the presence of odor.

6.4 Determination

The methods for the determination of each individual odor pollutant and odor concentration in this Standard are shown in Table 3.

Annex A (Supplement)

Calculation of emission concentration and emissions

A1 Emission concentration

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