Heart Palpitation: 8 Reasons for Your Abnormal Heartbeat. Heart palpitations occur when the heart beat increasesâit may noting a flutter, skipped beat, or heart rate thatâs abnormally hard and fast in your chest, throat, or neck. Heart palpitations can be frightening if youâve never experienced them before.
a combining form meaning âwater,â used in the formation of compound words: aquiclude; aquiculture; aquifer. Also, aqua-. Origin of aqui-.
The Air Quality Index (AQI) is an indicator of air quality which is previously used to measure Ontario's air quality. The Air Quality Health Index (AQHI) replaced the AQI on June 24, 2015. The AQI is based on air pollutants that have adverse effects on human health and the environment.