This episode is supported by CuriosityStream http://www.curiositystream.com/crashcourse A lot of work goes into managing our impact on the environment and its impact on us. That work is the work of environmental engineers. In this episode we’ll explore water quality, air quality, noise pollution, waste management, and more. Crash Course Engineering is produced in association with PBS Digital Studios:    • All PBS Digital Studios videos   Hot Mess: https://www.youtube.com/channel/UCsaEBhRsI6tmmz12fkSEYdw *** RESOURCES: https://www.bls.gov/ooh/architecture-and-engineering/environmental-engineers.htm https://www.npr.org/sections/thetwo-way/2016/04/20/465545378/lead-laced-water-in-flint-a-step-by-step-look-at-the-makings-of-a-crisis https://www.nytimes.com/2017/01/24/us/flint-michigan-water.html https://www.cityofflint.com/state-of-emergency/ http://www2.ku.edu/~kuwpaper/2017Papers/201703.pdf https://www.washingtonpost.com/news/wonk/wp/2017/09/21/flints-lead-poisoned-water-had-a-horrifyingly-large-effect-on-fetal-deaths-study-finds/?noredirect=on&utm_term=.52a9a486ecd5 https://www.cnn.com/2016/03/04/us/flint-water-crisis-fast-facts/index.html https://www.atsdr.cdc.gov/csem/csem.asp?csem=34&po=10 https://www.freedrinkingwater.com/water-education2/710-oxygen-water.htm https://cpb-us-e1.wpmucdn.com/blogs.cornell.edu/dist/3/1009/files/2015/05/Water-Quality-Parameters-Sean-McGlynn1.pdf https://www.watersystemscouncil.org/download/wellcare_information_sheets/potential_groundwater_contaminant_information_sheets/9709284pH_Update_September_2007.pdf http://omp.gso.uri.edu/ompweb/doee/science/physical/chsal2.htm https://www.qld.gov.au/environment/land/soil/salinity/impacts https://www.ehs.berkeley.edu/sites/default/files/lines-of-services/hazardous-materials/chemicalstoragebooklet.pdf https://blink.ucsd.edu/safety/research-lab/hazardous-waste/chemical.html#Select-compatible-containers https://www.cdc.gov/co/faqs.htm http://rccostello.com/wordpress/distillation/distillation-part-1-packed-towers-vs-tray-plate-towers/ https://asm-air.com/airconditioning/electrostatic-air-filters-work-pros-cons/ https://www.epa.gov/recycle/recycling-basics https://pubs.acs.org/doi/abs/10.1021/es9710870?journalCode=esthag https://extension.psu.edu/corrosive-water-problems http://www.aqua-sierra.com/causes-of-low-dissolved-oxygen-and-impact-to-fish/ http://omp.gso.uri.edu/ompweb/doee/science/physical/choxy1.htm http://encyclopedia.che.engin.umich.edu/Pages/SeparationsChemical/Absorbers/Absorbers.html *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Sam Buck, Mark Brouwer, Jennifer French Lee, Brandon Westmoreland, dorsey, Indika Siriwardena, James Hughes, Kenneth F Penttinen, Trevin Beattie, Satya Ridhima Parvathaneni, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Malcolm Callis, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Kathy & Tim Philip, Jirat, Ian Dundore -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com/ Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: null