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._. � According to die EAW, the es[imated odors at the NE corner of the properry line woufd be � 21.54 ug/m� (16ppb), and both the golf course and nearest residence would be over Zppb (Table 11. pg• 29)'• lluke Universiry scientists have discovered that people who live or work around foul odors often become depressed and irritable, given that the olfactory region of the brain is closely linked to the limbic system, the area that governs emotions (Schiffman, S.S. & Nagle, H.T. Effect of enviromnenta] pollutants on taste and smeli. O[olaryngology - Head & Neck Surgery 106: 693-700, 1992). Hydrogen sulfide is most certainly a foul odor. The North Carolina Division of Air Qualiry Science Advisory Board reported that "symptoms such as headache, nausea and eye and throat irritation" are found in communities with ambient levels "as low as 7 to 10 ppb" associated with periodic fluctuations at higher levels (JJH 10/"L/01). The odor estimated at the property ]ine is nearly double that at 16 ppb. Additionally, researchers investigating the adverse health effects from chronic, low-level exposure to hydrogen sulfide (as ]ow as an annual average of 7-27 ppb) found that exposed residents experienced detrimental health affects to the central nervous system, respiratory system, and circulatoiy (blood) system significantly greater than those not exposed (Legator, M.S., Singleton, C. R., Morris, U. L., Philips, D. L.. Health Effects fr-om Chronic Low-Level Exposure to Hydrogen Sulfide. Archives of Environmental Health, Mar/Apr 2001, VoL 56 Issue 2, p123). lM1�ith regard to economic impact, the concerns expressed by residents and businesses (Old Dutch, Gross National Golf Course, Midland Hills Golf Course, and many olhers) about the impact of these noxious odors in our community are backed by sound technical kno�vledge and research. For instance, although real estate research studies are dif�culty to come by, � there is research in North Carolina indicating that property values diminished by as much as 56% and as far away as 3,200 feet from the plan[ (Pincola Propert,v Study). This points to some substantiated concerns about the economic welf'are of Roseville. Anecdotatly, on a summer Saturday evening at 8pm when the plant was not operating , 1 spoke witl� a homeowner who lives across the street from Bituminous Roadways' Minneapolis asphalt plant. Although [ could smell the rotten egg odor clearly at this time, his whole family was relaxing outside, because, he said, they con never do this on a weekday. (1 was amazed they were even outside then.) He said they close thcir doors and windows when the plant is operating and do not play outdoors unti] weekends when it is not operating. He also mentioi�ed that he signed his home purchasing papers on a Sunday, prior to ever knowing the extent of the odors on a weekday, and was then locked into the deal. An unfortunate circumstance for him and his family. ] believe it is clear that hydrogen sul6de would constitute a noxious odor that causes detriment to physical, psychological, and economic well-being. i Noce that I converted figures from ug/m3 to pph using the standard calculation - MolWeight' ppb = 24.45' ug/m3 - since most of thc research uses ppb uniu. See calculations a[ [he end of this lettcr. `/