TAILIEUCHUNG - Operation of the Air Pollution Index (API), the Air Quality Index (AQI) and the Air Quality Advisory

After the two introductory presentations, participants receive hands-on training in how to operate (launch on a computer, troubleshoot, etc.) the UCB particle monitor, the HOBO CO logger and CO diffusion tubes. During a field trip to a nearby biomass-using home they place the instruments in the kitchen, record important sampling information on a sampling data form and collect basic information about the kitchen and household. A post- monitoring questionnaire characterizes important factors that can affect IAP levels. Participants are also encouraged to take photographs of the placement of the monitors and the household itself; these serve as a basis for a later discussion of the sampling experience. Downloading and processing data The monitors are. | GUIDELINE A-3 formerly 01-04 Operation of the Air Pollution Index API the Air Quality Index AQI and the Air Quality Advisory Legislative Authority Environmental Protection Act Part I Section 3 f Ontario Regulation 346 Section 4 Responsible Director Director Environmental Monitoring and Reporting Branch Last Revision Date April 1994 Table of Contents INTRODUCTION DEFINITIONS PURPOSE OF THE AQI AND API Purpose of the API Purpose of the AQI AQI AND API LEVELS AND CONTROL ACTIONS API AQI Control Actions METHOD AND FREQUENCY OF REPORTS OF AQI AND API LEVELS TO THE PUBLIC API AQI SYNOPSIS The Ministry produces two numerical indices based upon current air quality data -- the Ontario Air Pollution Index and the Air Quality Index. These indices although structurally related have different objectives and enforcement mechanisms. Authority for the Air Pollution Index and for the control measures associated with it is contained in . 346 . The Air Quality Index is produced and disseminated under the provisions of the Environmental Protection Act Part I Section 3 f . It is used primarily as an information tool. In addition when levels of ground level ozone above a threshold level of 80 ppb are observed or forecast from the Air Quality Index Program the Ministry will issue Air Quality Advisories. Introduction The Ministry releases two numerical indices based on current measurements of air pollution in various communities throughout Ontario -- the Air Pollution Index and the Air Quality Index. This guideline outlines the objectives of these two indices and describes actions the Ministry shall take in connection with them to control pollutant emissions to the atmosphere. Definitions Air Pollution Index API A series of numbers expressing the relative levels of air pollution and taking into consideration one or more contaminants as provided for under O. Reg. 346 . The API protects human health by triggering control .

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