On Tuesday, the ban on selling many single-use plastic water bottles at San Francisco International Airport went into effect. The ban was implemented based on a 2014 ordinance that bans selling disposable plastic bottles on city-owned property; the airport is owned by the city.
As NBC News reports, 58 million passengers go through SF International each year; 10,000 single use bottles are sold there every day, amounting to four million every year.
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