Clinical Research Directory

Inclusion Criteria: Age 40 years or older Speaks English, Vietnamese, and/or Chinese Cognitive capacity to respond to questionnaires Lives fulltime at the current address, adjacent (\< 200 meters) to roadways with large traffic volumes Must have one or more risk factors (hypertension or elevated blood pressure, pre-diabetes or diabetes or elevated blood sugar levels, elevated cholesterol levels, body mass index 25 or greater) Exclusion Criteria: Pregnant Works between the hours of 10 PM and 6 AM Sources of smoke in the living space (such as candles, incense, marijuana, wood stove, fireplace) almost every day/every day. Every day exposure to motor vehicle exhaust (from cars, trucks, buses, trains), including heavy street or highway traffic. Currently smoking or vaping Others smoking or vaping indoors, in the living space. Within the past 5 years, a diagnosis of heart attack, heart disease, stroke, blood clots or pulmonary embolism, cancer requiring surgery and/or chemo/radiation therapy