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To: maceng2 who wrote (50804)	6/7/2004 10:09:39 PM
From: Toby Zidle	Read Replies (1) \| Respond to of 74559

Pearly, most of the Asthma sites I visit refer to pollens as a cause, not to air pollution. Here are examples of triggers: Inside the house, dust mites and mold are the biggest allergen problems. Some children are allergic to animal dander (dry skin, feathers and fur bits). Cigarette smoke can also cause asthma attacks. Pollen is the biggest problem outdoors. familydoctor.org Utah Department of Health Asthma Program: Pollen is a trigger for asthma. You can find out when pollen counts are high where you live and where you are traveling. health.utah.gov "What causes asthma?" A list of 13 triggers - 'not a complete list' If they are in order of importance, pollen is #3, air pollution is #6. "Everyone is different." 4woman.gov High Carbon Dioxide Levels May Up Asthma Rate Researchers Say Increased Greenhouse Gases Cause Increased Levels of Pollen and Other Allergens "A 2003 study published in the Journal of Allergy and Clinical Immunology suggested that ragweed, which produces one of the most common allergens, is responding to the higher CO2 levels in the atmosphere by producing more pollen. "Ragweed grew faster, flowered earlier, and produced significantly greater above-ground biomass and ragweed pollen at urban locations than at rural locations," an abstract of the study concludes. my.webmd.com ------------- As to the question of whether vegetation (and, hence, pollen) is increasing or decreasing, direct statistics are harder to come by. However, almost every urban area you can look up is creating parks, green belts, nature reserves, protecting wetlands, etc. A general sampling of projects is reported in djc.com "The Economic Benefits of Parks and Open Space: How Land Conservation Helps Communities Grow Smart and Protect the Bottom Line," is reported with numerous section links at tpl.org For just Massachusetts, there are these programs: Worcester Watershed Land Protection Partnership (MA) Campaign to Preserve Bolton's Orchards (MA) Campaign for a Green Grafton Nashua River Watershed Program (MA & NH) Community Preservation Act (MA) Parks for People -- New England Look up the other 49 states and DC. If I go further, I feel like I'm back to writing research reports.