(Portland, OR) -- Multnomah County and the City of Portland made hundreds of calls prior to and during the heat wave to contact people who would be vulnerable in the heat. Starting last Friday, they called 570 unique property owners or managers in urban heat islands or with tenants who might be at risk of the heat. They sent over 600 emails with information about resources to vulnerable residents. On Monday and Tuesday, they called more than 800 households who receive long-term services and support to check on them and make sure they knew what resources were available. Many people were reluctant to use air conditioning, because of the expense, but they were told it's worth the cost during an emergency.