Dr. Don and Professor Ben talk about the risks from grapes grown at the intersection of two 4 lane highways.

Dr. Don - not risky 👍🏼
Professor Ben - not risky 👍🏼

• Risks Assessment of Heavy Metal Pollution in Roadside Soil and Vegetation of National Highway Crossing through Industrial Area | Environmental Processes
• Effect of a Highway’s Traffic on the Level of Lead and Cadmium in Fruits and Vegetables Grown Along the Roadsides - Igwegbe - 1992 - Journal of Food Safety - Wiley Online Library
• Lead in soils and plants: its relation to traffic volume and proximity to highways | Environmental Science & Technology
• Contamination of agricultural soil by urban and peri-urban highways: An overlooked priority? - ScienceDirect
• Risks Assessment of Heavy Metal Pollution in Roadside Soil and Vegetation of National Highway Crossing through Industrial Area | Environmental Processes
• Captured Water, Carbon Dioxide From Car Exhaust Could Help Grow Food – Texas A&M Stories
• I live right off of a busy freeway - it safe to consume garden produce? : r/UrbanGardening
• How Safe is it, Really, to Eat Food Grown in an Urban Garden? - Modern Farmer
• Chemical Contamination Pathways and the Food Safety Implications along the Various Stages of Food Production: A Review - PMC