Planning a Sampling Campaign: The Key Steps

Planning a sampling campaign is a crucial step to ensure the collection of accurate and meaningful environmental data. In Quebec, this planning is guided by “Note 4 – Sampling of atmospheric emissions from stationary sources” of the Ministry of the Environment and the Fight against Climate Change. In this blog, we will explore the key steps in planning a sampling campaign, based on the information provided.

1. Collection of Preliminary Information

The first step in planning a sampling campaign is to collect preliminary information on air emission sources. This may include data on emissions, the nature of pollutants, types of sources, and locations of emission points. This information will serve as a basis for further planning.

2. Choice of Sampling Methods

The choice of sampling methods is crucial and depends on the objective of the campaign, the type of source and the emission points to be sampled. The methods must be compatible with the specific conditions of each emission point. If temporary adjustments are necessary to bring the emission point into compliance with the method, they should be considered, and approval from the competent authorities may be required.

3. Preliminary Visit to the Sampling Site

A preliminary visit to the sampling site is often necessary, particularly when this is the first sampling campaign at a specific emission point. This visit makes it possible to take into account the details of the site, to confirm the plans provided by the operator, to identify the constraints of accessibility and gas flow, and to check the infrastructure needs (platform). safe form, electricity, etc.). It may also lead to changes in the choice of sampling methods.

4. Preparation of Sampling Material

The list of necessary sampling equipment is established according to the methods chosen. It is essential to ensure that all equipment is available and in good working order. Spare parts should be provided, and equipment preparation, including calibration and weighing of filters, should be planned accordingly.

5. Composition of the Sampling Team

The sampling team must be made up of qualified members in sufficient numbers to guarantee that quality tests are carried out at each emission point. A scientific manager or team leader should be part of each sampling team, and the division of tasks should be clearly defined.

6. Representative Conditions of Exploitation of the Source

The tests must be carried out under conditions representative of the operation of the source, which includes the conditions of the source itself as well as those of the purification equipment, if applicable. Preliminary checks are often necessary to ensure conditions are compliant.

7. Data Recording

Planning includes setting up data acquisition forms and systems to record field data and sample chain of custody.

8. Choice of Analysis Laboratories

The choice of analytical laboratories is based on the substances to be analyzed, and must take into account accreditation and compliance with standards requirements.

9. Sampling Schedule

A chronological schedule is established for carrying out the campaign, taking into account the minimum duration of each test, the availability of the team and equipment, as well as the representative operating conditions of the source.

Planning a sampling campaign is a complex operation that requires meticulous attention to detail. By respecting the guidelines in Workbook 4 and following these key steps, environmental professionals can guarantee the collection of high-quality data, thus contributing to the protection of public health and the environment in Quebec.