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Show 4.- NOx Regulations in Canada. In Canada, presently, the situation is somewhat confusing as there are no "official" comprehensive countrywide regulations. Air pollution control is under the jurisdiction of the Provinces and Territories and, actually, few of them have regulations. Although the amount of NO x legislation in Canada is significantly smaller than in the USA, there seems to be a high level of environmental consciousness and self regulation by the industry and government entities. More and more existing installation as well as most ne\v installations today specify NOx limits only slightly higher than those in USA, based on a series of unofficial or semi-official guidelines. Federal Guidelines. - The CCME NOxIVOC Management Plan. '. The Nitrogen Oxides and Volatile Organic Compounds Management Plan was prepared by the Canadian council of Ministers of the Environment (CC:ME) which groups Federal and Provincial environment Ministers. Issued in May 1991, it is a three phase plan intended to address the problem of ground-level ozone. It was deemed by the Council to be the most serious air quality problem in Canada, specia.lly in the three most industrialized regions: The lower Fraser Valley, the Southern Atlantic Region and the WindsorQuebec Corridor. Phase I of the plan included some 90 initiatives which proposed perfonnance standards for NOx and VOC's. These initiatives are scheduled to be implemented between this year (1994) and the year 2000. Three of these initiatives are of most interest to the steam generation industry: Initiative N305 - Perfonnance standards for NOx from Power Plants (effective in 1995 and 2000); Initiative N306 - Perfonnance standards for NOx from New IndustriaVCommercial Boilers and Heaters (effective in 1994); and Initiative N603 - Perfonnance standards for Page 6 NOx from Existing IndustriaVCommercial Boilers and Heaters (effective in 1994-1997). Initiatives N306 and N603 are being addressed together. Although to this date, these initiatives remains to be promulgated, they are being partially implemented. Many private industry projects call for compliance with the NOx limits proposed by N306 and N603; sometimes even tougher limits (like FIDEC guidelines). Initiatives N306 and N603 propose basically the same limits for new and existing boilers. Once promulgated, these limits are expected to become mandatory for all installations in Canada taking precedence over provincial regulations. Figure 4.1 shows a summary of the proposed limits of initiatives N306 and N603. Figure 4.2 shows a summary of the proposed limits of initiative N305 CCME INrnATlVES N306 & N603 NOx LIMITS FOR NEW AND EXISTING BOILERS AND HEATERS NITROGEN OXIDES FUELS ng/Joule ppmv @ 3°/. 02 Dry NATURAL GAS 30 55 LIGHT (#2) OIL 50 93 HEAVY (#6) Oil 110 170 Figure 4.1 - CCME Initiatives N306 & N603 CCME INITIA TNE N305 NOx UUITS FOR NEW POWER PLANTS NITROGEN OXIDES FUELS Prtor to Jan. 1 1995 On or After Jan. 1 1995 na/Joule ppmv na/Joule ppmv GASEOUS FUELS 86 158 50 93 LIQUID FOSSil FUELS 129 235 110 200 SOLID FOSSIL FUELS 258 470 170 310 Figure 4.2 - CCME Initiative N305 |