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6/20: Hello readers and friends. I am having my second (of two) total knee replacement surgeries today so I'll be out of commission for a bit while I recover. Please be patient while I get back to full health. I hope to be back to posting as soon as I can. I look forward to getting back out there. 🙏. - Jonathan Maus, BikePortland Publisher and Editor

Buffered Bike Lane with a bike symbol and arrow pointing forward

Biking and breathing on major streets

Newsflash: Cars are highly toxic and bike riders suck it all in.(Photo © J. Maus/BikePortland) The Portland Tribune published an article yesterday with a scary headline: “Car exhaust proves unseen road hazard.” The story chronicled the efforts of transportation researcher Alex Bigazzi, who rides around Portland with special equipment attached to his bike in order … Read more


Buffered Bike Lane with a bike symbol and arrow pointing forward

Study shows cycling in heavy traffic may pose heart risk

Riding on SW Broadway in downtown Portland.(Photo © J. Maus) [Via Environmental Health News] In what researchers call the first study ever to examine the relationship between traffic-related air pollution exposures and cardiac health among people who ride bikes, a study published last month found that cycling near heavy traffic “may have a significant impact” … Read more