Alexander J. Stein<p><a class="hashtag" href="https://bsky.app/search?q=%23Electrifcation" rel="nofollow noopener noreferrer" target="_blank">#Electrifcation</a> of commuter rail line reduced riders' exposure to carcinogenic black carbon by 89% within & around a <a class="hashtag" href="https://bsky.app/search?q=%23SanFrancisco" rel="nofollow noopener noreferrer" target="_blank">#SanFrancisco</a> station. The switch from <a class="hashtag" href="https://bsky.app/search?q=%23diesel" rel="nofollow noopener noreferrer" target="_blank">#diesel</a> to electric <a class="hashtag" href="https://bsky.app/search?q=%23trains" rel="nofollow noopener noreferrer" target="_blank">#trains</a> dramatically boosted the <a class="hashtag" href="https://bsky.app/search?q=%23airquality" rel="nofollow noopener noreferrer" target="_blank">#airquality</a> aboard the commuter <a class="hashtag" href="https://bsky.app/search?q=%23rail" rel="nofollow noopener noreferrer" target="_blank">#rail</a> line… (1/2) <a href="https://news.berkeley.edu/2025/04/16/electric-trains-are-quieter-more-reliable-than-diesel-new-study-finds-theyre-healthier-too/" rel="nofollow noopener noreferrer" target="_blank">news.berkeley.edu/2025/04/16/e...</a> <a class="hashtag" href="https://bsky.app/search?q=%23health" rel="nofollow noopener noreferrer" target="_blank">#health</a><br><br><a href="https://news.berkeley.edu/2025/04/16/electric-trains-are-quieter-more-reliable-than-diesel-new-study-finds-theyre-healthier-too/" rel="nofollow noopener noreferrer" target="_blank">Electric trains are quieter, m...</a></p>