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International Conference of Establishment Surveys - 2007 Session 71 : Survey of Environmental Protection: Experience and Challenges Environment Surveys of Establishments: the Canadian Experience Thursday, June 21 st , Montréal, Québec Overview Environment Survey Program at Statistics Canada
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International Conference of Establishment Surveys - 2007 Session 71: Survey of Environmental Protection: Experience and Challenges Environment Surveys of Establishments: the Canadian Experience Thursday, June 21st, Montréal, Québec
Overview • Environment Survey Program at Statistics Canada • Business Environmental Protection Expenditures • What we measure and the challenges • How we define ‘environmental protection expenditures’ • How we survey businesses • Survey redesign • Industrial Water Survey • Background and development • What is measured • How is it defined? • Challenges • Final comments
Environment survey program at Statistics Canada Four established surveys • Survey of Environmental Protection Expenditures • Environment Industry Survey (currently undergoing conceptual redesign) • Waste Management Industry Surveys: Business and Government New surveys – ongoing or in development • Households and the Environment Survey (began for 2006 reference year) • Industrial Water Survey (began for 2005 reference year) • Survey of Municipal Source Water Quality (in development) • Agricultural Water Survey (in development)
Development of the Survey of Environmental Protection Expenditures (SEPE) • The Pollution Abatement and Control Survey in 1989 was conducted by the Investment and Capital Stock Division of Statistics Canada • Progressive in its content – included PAC end-of-pipe and ‘change in processing’ techniques (P2) • Sales on own use of PAC-recovered materials • Most challenging, perhaps, were questions on estimating physical reduction in emissions resulting from PAC and P2 investments • Statistics on capital and operating expenditures collected only for ‘end-of-pipe’ retrofit and equipment projects – ‘change in processing’ techniques excluded • Lessons learned • Definition of an ‘environmental protection expenditure’ • Difficulty in providing physical measures
Refinement of the survey • A second survey was not conducted until 1994 • Conducted within the National Accounts and Environment Division • Coverage narrowed to primary and manufacturing industries identified as being the heavier polluters • Questions restricted to financial and other descriptive statistics • More detailed questions on integrated processes (pollution prevention) capital and operating expenditures and environmental practices • A clear definition of an ‘environmental protection expenditure’ is particularly important as businesses began implementing solutions based on integrated processes and technologies • Subjective interpretation will likely always exist but for comparisons over time, consistent applications of methodology crucial for respondents and data users • Introduction of the “compliance criterion” in the 1994 survey reference year • Also included “anticipated” environmental protection expenditures
Other challenges • Lack of classification of environmental goods or technologies • Difficult to use other information sources (such as administrative data or economic surveys) since current product classifications are too general • Industries using many different processes that would necessitate the development of a large number of customized questionnaires • Expenditure questions on the survey are mainly split into general categories of expenditures instead of by process or technology • Environmental monitoring • Pollution prevention • Pollution abatement and control • Protection and restoration of wildlife and habitat • Environmental assessments and audits • Site reclamation and decommissioning • Environmental charges • etc.
Evolution of survey content Survey content has evolved to include, for various years: • Use of environmental processes and technologies (focussed mainly on end-of-pipe) • Transition to more environmentally friendly technology and renewable energy use • Questions on environmental management practices • Modules on greenhouse gas mitigation efforts • Modules on the adoption of improved systems or equipment to reduce energy consumption Mid-1990s 2006
Challenges • Businesses have to contend with many other surveys from Statistics Canada and many other sources • Business, particularly small and medium-sized, may not be as familiar with concepts such as pollution prevention, pollution abatement and control or climate change • Businesses may have difficulty separating their environmental protection expenditures from other types of expenditures (particularly operating expenses), mainly because their accounting system do not track them • Despite the definition provided on the questionnaire, businesses may over-report their environmental protection expenditures • Businesses have had difficulty providing a breakdown of their operating expenses by media (air, water, waste, noise) • Businesses have had difficulty reporting their purchases of environmental services • Must carefully manage questionnaire size and detail (i.e. number of questions, detail of financial information, classification of information etc.). We have an obligation to keep response burden to a minimum
Survey redesign • The Survey of Environmental Protection Expenditures is undergoing a thorough re-design for the 2006 reference year • Sample sourced from Statistics Canada’s central Business Register • New sample design based on probability sampling using weighting • New edit and imputation system based on generalized systems • Generalized system for outlier detection • Further automation and enhancement of confidentiality screening • Automated table generation to allow for faster dissemination of results • From a long and short questionnaire to a single long questionnaire • Enhancements to the qualitative estimates • The old edit and imputation system could only be used with quantitative cells • Qualitative estimates based on reported values only and biased to larger establishments • New system will estimate for non-response with weighting for non-sampled portion
Electronic reporting • Since the 1995 reference year survey, an electronic version of the questionnaire has been available • Microsoft Excel format • Sent to respondents who contacted Statistics Canada to receive it • Over time, Excel version of questionnaire received modest improvements • Grew in popularity but was time consuming to manage internally • For the 2006 reference year, in conjunction with the redesign, a ‘fillable’ Adobe PDF electronic questionnaire was developed • Ability for respondent to fill in questionnaire and save their data • Identical to paper questionnaire • Includes simple edits during completion and a data verification stage once questionnaire filled out • Will improve accuracy of the OCR scanning system the 2006 survey will use • Not a true ‘Electronic Data Reporting’ system but rather a respondent aid
Redesign challenges Methodology – at the beginning of building imputation and estimation system • One of the biggest challenges is finding relationships between the environmental variables we are collecting information on and economic variables • Analysis has shown inconsistent relationships between environmental protection expenditures (capital and operating) with overall business expenditures, employment size, or revenues • Challenging for the methodologists to design edits and imputation formulas based on donor information for the establishment or similar establishments collected on other business surveys
Industrial Water Survey (IWS) • Statistics Canada assisted Environment Canada in the administration of an industrial water survey from 1972 until 1996 • Information collected: intake and discharge volumes, water use, types of water treatment as well as cost information • Canadian Federal Government’s decision to create a national water quality indicator catalyst for a revival of the survey • Cooperative project between Statistics Canada, Environment Canada and Health Canada to review and update the survey and to maximize comparability with the 1996 survey
Survey development • Three survey questionnaires developed for three industry sectors for the 2005 reference year: • Manufacturing, thermal power generation and mining • Detailed statistics to be collected on water use and management, such as: • Water intake by source, water treatment, purpose and recirculation/reuse • Water discharge, including type of treatment prior to discharge and point of discharge • Operating and maintenance costs for water acquisition, treatment of intake water, treatment of discharge water • Capital expenditures on water intake, discharge or treatment facilities • Questionnaires customized for unique operating characteristics of each sector • Feasibility study approved for Oil and Gas extraction for 2006 reference year • Survey slated be conducted every two years
Survey development - continued • The draft questionnaires were tested in several locations across Canada using one-on-one interviews with potential respondents in the three sectors • Second objective was to develop a sound methodological framework from sample selection through to final estimates • The IWS is the first of the current dedicated environment business surveys to use methodological support from Business Survey Methods Division and linked to Statistics Canada’s central Business Register • Probability sample design and use of generalized systems for edit and imputation, outlier detection, weighting, table production and confidentiality assurance
Challenges • Statistics Canada’s central Business Register lacking environmental variables for sampling purposes – such as drainage basin codes or other environmental geographies • The volume data was not always available. For many industries in many jurisdictions there is no requirement to monitor water intake or discharge • Financial information was often not readily available to the respondents, causing some non-response to these questions or ‘best guess’ estimates • Some respondents felt that the rationale for some of the questions in the survey was unclear • Some respondents felt more explanation and guide was needed when answering the questions. An improved reporting guide is being developed • May have to survey at the location level, rather than establishment
Challenges - continued • Locating the appropriate individual within an establishment to complete the survey was sometimes difficult • Respondents indicated that they already report the information to other government departments • There seemed to be a significant demand for electronic reporting capabilities. In fact, one industry association developed an EXCEL questionnaire for their membership which was used extensively • The development of an fillable Adobe PDF for the IWS survey likely if the SEPE version proves successful • STC also in the process of developing a new EDR system for business surveys
Thank-you! Jeff Fritzsche Environment Accounts and Statistics Division Statistics Canada 613-951-2812 Jeff.Fritzsche@statcan.ca