By Jae C. Hong and Audrey McAvoy: PAHOA, Hawaii (AP) — The eruption of Kilauea volcano in Hawaii sparked new safety warnings about toxic gas on the Big Island’s southern coastline after lava began flowing into the ocean and setting off a chemical reaction. The molten rock started pouring into the sea over the weekend. It’s been generating plumes of lava haze or “laze” as it interacts with seawater. It’s just the latest hazard …