SLzp, SLrms and SSELws of the OCTA-KONG pile driving and pile extraction and the audible range.

SSELss was identical to SLrms. The average levels of the OCTA-KONG and ambientnoise are provided. Numbers in parentheses indicate the range. Sensation level was derived by dividing the vibration sound by the ambient noise level. SLs and SSELs are re 1 µPa and 1 µPa2s, respectively. Subscript 'a' denotes sound recorded by the BS recording system, 'b' denotes sound recorded by the SM2M recording system. * denotes results that exceeded the proposed cetacean safety exposure level of 180 dB (SPLrms).SLzp, SLrms and SSELws of the OCTA-KONG pile driving and pile extraction and the audible range.