Publié le 02/11/2023, mis à jour le 02/11/2023
Quality of groundwater in Bermuda💧
💡 𝑫𝒊𝒅 𝒚𝒐𝒖 𝒌𝒏𝒐𝒘 that #SeaLevelRise may affect the quality of groundwater in the future?
𝐈𝐧 𝐁𝐞𝐫𝐦𝐮𝐝𝐚, 𝐚𝐫𝐨𝐮𝐧𝐝 𝟔𝟎% 𝐨𝐟 𝐭𝐨𝐭𝐚𝐥 𝐩𝐨𝐭𝐚𝐛𝐥𝐞 𝐰𝐚𝐭𝐞𝐫 𝐜𝐨𝐦𝐞𝐬 𝐟𝐫𝐨𝐦 𝐫𝐚𝐢𝐧𝐰𝐚𝐭𝐞𝐫 𝐡𝐚𝐫𝐯𝐞𝐬𝐭𝐢𝐧𝐠 𝐟𝐫𝐨𝐦 𝐁𝐞𝐫𝐦𝐮𝐝𝐚𝐧 𝐫𝐨𝐨𝐟𝐬 (estimated value) and the remainder of potable water comes from reverse osmosis, seawater reverse osmosis (24%) and groundwater reverse osmosis (16%).
The groundwater is one of the key sources of water supply system of Bermuda.
𝐇𝐨𝐰𝐞𝐯𝐞𝐫, 𝐭𝐡𝐞 𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐨𝐟 𝐠𝐫𝐨𝐮𝐧𝐝𝐰𝐚𝐭𝐞𝐫 𝐦𝐚𝐲 𝐛𝐞 𝐭𝐡𝐫𝐞𝐚𝐭𝐞𝐧𝐞𝐝 𝐚𝐬 𝐭𝐡𝐞 𝐬𝐞𝐚 𝐥𝐞𝐯𝐞𝐥 𝐫𝐢𝐬𝐞𝐬 𝐨𝐯𝐞𝐫 𝐭𝐢𝐦𝐞, the sea water takes over the volume of bedrock and the volume of rock available to develop the freshwater lenses decreases. That means this could result in the increase of salinity of #groundwater and may reduce the #water quality eventually.
📈 Results of recent study conducted by ASU Bermuda Institute of Ocean Sciences indicate that after short (estimated five-hour) lags, extreme sea level events in 2019 and 2020 produced salinity spikes in the St. George’s lens water.
👉 That is to say, the more frequent the sea level reaches its extreme and gradually rises overtime, the worst Bermumda's groundwater quality may be.
𝐆𝐥𝐨𝐛𝐚𝐥 𝐬𝐞𝐚 𝐥𝐞𝐯𝐞𝐥 𝐫𝐢𝐬𝐞 𝐡𝐚𝐬 𝐚𝐥𝐫𝐞𝐚𝐝𝐲 𝐛𝐞𝐞𝐧 𝐠𝐞𝐭𝐭𝐢𝐧𝐠 𝐡𝐢𝐠𝐡𝐞𝐫 𝐬𝐢𝐧𝐜𝐞 𝐬𝐞𝐯𝐞𝐫𝐚𝐥 𝐝𝐞𝐜𝐚𝐝𝐞𝐬 𝐚𝐧𝐝 𝐢𝐬 𝐚𝐜𝐜𝐞𝐥𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐫𝐞𝐜𝐞𝐧𝐭𝐥𝐲, 𝐛𝐮𝐭 𝐰𝐞 𝐬𝐭𝐢𝐥𝐥 𝐡𝐚𝐯𝐞 𝐜𝐡𝐚𝐧𝐜𝐞𝐬 𝐭𝐨 𝐭𝐚𝐤𝐞 𝐭𝐡𝐞 𝐫𝐢𝐠𝐡𝐭 𝐚𝐜𝐭𝐢𝐨𝐧𝐬 𝐭𝐨 𝐩𝐫𝐞𝐯𝐞𝐧𝐭 𝐢𝐭 𝐫𝐢𝐬𝐢𝐧𝐠 𝐟𝐚𝐬𝐭𝐞𝐫 𝐚𝐧𝐝 𝐚𝐢𝐝 𝐁𝐞𝐫𝐦𝐮𝐝𝐚 𝐭𝐨 𝐫𝐞𝐢𝐧𝐟𝐨𝐫𝐜𝐞 𝐢𝐭𝐬 𝐜𝐥𝐢𝐦𝐚𝐭𝐞 𝐫𝐞𝐬𝐢𝐥𝐢𝐞𝐧𝐜𝐞 𝐟𝐨𝐫 𝐰𝐚𝐭𝐞𝐫 𝐬𝐮𝐩𝐩𝐥𝐲.