环保设备板块12月16日跌1%，碧兴物联领跌，主力资金净流出6939.79万元

Group 1 - The environmental equipment sector experienced a decline of 1.0% on December 16, with Bixing Wulian leading the drop [1] - The Shanghai Composite Index closed at 3824.81, down 1.11%, while the Shenzhen Component Index closed at 12914.67, down 1.51% [1] - A detailed table of individual stock performance within the environmental equipment sector is provided [1] Group 2 - The net outflow of main funds in the environmental equipment sector was 69.3979 million yuan, while retail investors saw a net inflow of 62.1003 million yuan [2] - The net inflow of speculative funds was 7.2976 million yuan [2] - A detailed table of fund flows for individual stocks in the environmental equipment sector is provided [2]