Search the Database
Explore data for pollutants transferred from facilities in one country to facilities in another country.

Select one of the following report types to explore release and transfer data. You can also ungroup your results (e.g., by pollutant, by industry). To further refine your query, choose from among the options in the following drop-down menus. When you have completed your selection, click “Submit.”

On the results page, you can explore the data in various ways – e.g.:

  • Click on an underlined name or term in the results table(s)
  • For certain types of reports (e.g., Facility), click on a point in the inset map
  • Click the “Show/Hide Columns” tab in the results table to see additional details.

You can also click the “Export” tab to download the data in various formats (e.g., Excel spreadsheet, KML file for viewing in Google Earth).

If you wish to change your selection, click any element in the “Query Results” summary in the upper left corner of the page, then click “Apply.”

Report Type

Results and how to use them:

  • A list of all facilities with the amount reported by each facility
  • Click on a facility name to get a breakdown of all pollutants (and amounts) reported
  • View the facility location on the map inset
  • Download the data

Results and how to use them:

  • The industry(ies) reporting and the amount reported by industry
  • Click on the industry name to get a breakdown of amounts reported by state/province/territory, pollutant, and facility
  • Download the data

Results and how to use them:

  • The country(ies) reporting and the amount reported by country
  • Click on the country name to get a breakdown of amounts reported by state/province/territory, pollutant, and industry
  • Download the data

Results and how to use them:

  • The state/province/territory(s) reporting and the amount reported by region
  • Click on the state/province/territory name to get a breakdown of amounts reported by pollutant, industry, and facility
  • Download the data

Results and how to use them:

  • The associated city(ies), and the amount reported by city
  • Click on the city name to get a breakdown of amounts reported by pollutant, industry, and facility
  • Download the data

Results and how to use them:

  • The associated watershed(s), and the amount reported by watershed
  • Click on the watershed name to get a breakdown of amounts reported by pollutant, industry, and facility
  • Download the data

Toxic Equivalency Potentials (TEP) for Air and Water Releases

Toxic Equivalency Potentials (TEPs) indicate the relative human health risk associated with a release of one unit of a pollutant, compared to the risk posed by the release of one unit of a reference substance. TEPs are calculated using the CalTOX model, developed by California regulatory agencies. TEPs are one of many different screening tools, each of which is based on a series of assumptions, thus yielding different results.

Readers should note that the TEP analysis is limited in that a release does not directly correlate to actual exposures or levels of risk. In addition, not all of the substances have an assigned TEP (information on their toxicity or exposure potential may be missing). While these pollutants are not ranked by TEP, they should not be assumed to be without risk. Other types of releases not ranked by TEP (e.g., land) should also not be assumed to be without risk.

TEPs are available only for air and water releases. The reference chemical for carcinogens is benzene and the reference chemical for non-carcinogens is toluene. In the Taking Stock report and database, the TEP weight is multiplied by the amount of release to provide a score for each pollutant. The TEPs for Taking Stock have been taken from the Scorecard website

Results and how to use them:

  • The pollutants reported and the amounts reported
  • Click on a pollutant name to get a breakdown of amounts reported by state/province/territory, industry, and facility
  • Download the data
Ungroup results based on:

Year

    Facilities report the amounts of each pollutant they have released to the environment at their own location (on site). They also report how much of the substance was sent off-site for disposal, or transferred for recycling or other waste management. Each country's PRTR has evolved with its own list of pollutants, sector coverage, and reporting requirements. For more information, see : Using and Understanding Taking Stock

    Location

    Country
      State/Province/Territory
        City (Select a State/Province/Territory to choose from a list of Cities)
          Watershed Based on its reported location, each facility has been assigned a watershed from the Watersheds dataset in CEC’s North American Environmental Atlas.
          • Note that there are Level III watersheds only in the Mississippi River System (i.e., Mississippi Sub-Basins).

            Pollutant

            Pollutant Type
              Pollutant

                Each country requires PRTR reporting by facilities in specific industrial sectors or undertaking specific industrial activities. Click here for more information.

                Canada, Mexico and the United States have adopted the North American Industry Classification System (NAICS), whose codes are used to categorize the industrial activities of a facility. Although there is some variation among the three countries in the subsector categorizations and codes used, the breakdown of industrial sectors into general categories is the same:

                NAICS codeIndustry
                11Agriculture, forestry, fishing and hunting
                21Mining, quarrying and oil and gas extraction
                22Utilities (electricity, water and gas distribution)
                23Construction
                31/32/33Manufacturing
                41/42/43Wholesale trade
                44/45/46Retail trade
                48/49Transportation and warehousing
                51Information and cultural industries
                52Finance and insurance
                53Real estate and rental and leasing
                54Professional, scientific and technical services
                55Management of companies and enterprises
                56Administrative and support, waste management and remediation services
                61Educational services
                62Health care and social assistance
                71Arts, entertainment and recreation
                72Accommodation and food services
                81Other services (except public administration)
                91/92/93Public administration

                PRTR reporting requirements are based in part on the industrial activity undertaken within a facility, and not only the industry code assigned to that facility. Therefore, not all facilities within a given sector might have to report. For example, within the economic sector that includes dry-cleaning only those facilities undertaking the actual dry-cleaning process, and not clothing drop-off points, might be required to report. Another example is a food processing plant that is required to report because it has its own power plant to generate electricity.

                Readers should also note that facilities with similar activities can report under different, or multiple, NAICS codes, depending on the activities undertaken at the facility.

                Taking Stock Online provides data at the 3-, 4- and 5-digit NAICS code level. In some cases, the North American Industry Classification System (NAICS) codes differ among the three countries. For example, the code for Wholesale Trade is 41 in Canada, 42 in the United States and 43 in Mexico. When querying data for an industrial sector whose code begins with any of the 2 digits below, the results returned might include only partial data. Therefore, you might also wish to consult the data reported under the corresponding codes provided.

                Industrial Sector NameCorresponding Codes in each Country
                (for the series starting with the 2 digits indicated)
                CanadaMexicoUnited States
                Wholesale Trade414342
                Retail Trade44, 454644, 45
                Public Administration919392

                North American Industry Classification System (NAICS)

                Industry
                  • Values reported in pounds are converted to kilograms using a conversion factor of 2.205
                  • Values reported in tonnes are converted to kilograms using a conversion factor of 1000

                  Units of Measurement

                  Query Summary
                  Report Type
                  • Ungroup by
                  Year
                  Location
                  • Country
                  • State/Province/Territory
                  • Watershed
                  Pollutant
                  • Common
                  • Pollutant Type
                  • Pollutant
                  • Units of Measurement
                  North American Industry Classification System (NAICS)
                  • NAICS
                  • Industry
                  Release and Transfer Types

                  CONTACT


                  For more information about Taking Stock, please contact:

                  ORLANDO CABRERA

                  Environmental Quality,

                  Head of Unit

                  (514) 350-4323

                  ocabrera@cec.org

                  ** Quantities of metals reported as transferred off-site for sewage, treatment, or energy recovery are included in the "Off-site Disposal" category, since these metals may be captured and removed from waste and disposed of in landfills, or by other methods. This approach recognizes the physical nature of metals and the fact that they are not likely to be destroyed through treatment.

                  The data are taken from the US Toxics Release Inventory, the Canadian National Pollutant Release Inventory (NPRI), and the Mexican Registro de Emisiones y Transferencia de Contaminantes (RETC). Each country has its own list of mandatory pollutants. Reporting thresholds for pollutants, sectors and facilities also vary. For details, see Using and Understanding Taking Stock.

                  The national PRTR datasets are constantly evolving, as facilities revise previous submissions to correct reporting errors or make other changes. For this reason, the three countries 'lock' their data sets on a specific date and use the 'locked' data for annual summary reports. Each year, the countries issue revised databases that cover all reporting years. The CEC follows a similar process. For the purposes of this database, the NPRI dataset from September 2017, the TRI Basic Data Plus dataset from October 2017 and the RETC dataset from January 2018 were used. Readers can visit the national PRTR websites to see if any changes to the data have occurred.