The City of Portland just adopted a new ordinance for home demolitions that requires crews to first remove painted exterior surfaces before they tear down a home. The new rules are being put into place to reduce the chance that lead dust will get into the air. Also under the new rules, crews will have to alert neighbors living within 300 feet of the project, doubling the original ordinance rules. Demolitions would also be barred if the wind measures 25 miles per hour or more. More than 1300 homes in Portland have been torn down over the past 15 years, often with no precautions taken to contain the potentially toxic dust. The new rules take effect on or before July 1st.