Noise level on ships at port (dBA) Results Subjects Measuring position Navigation Bridge (1) Accommodation (2) Engine room (3) Deck (4) X SD X SD X SD X SD Fishery ships (n=30) 83, 96 4, 91 83, 96 4, 91 95, 37 5, 30 82, 06 1, 91 p p1, 2, 4 - 3< 0, 001 Ocean ships (n=30) 73, 47 2, 94 55, 17 2, 59 94, 70 3, 27 81, 90 2, 37 p p1 - 2< 0, 001; p2 - 3< 0, 001; p1, 2, 4 - 3< 0, 001 Sanitation and Hygiene Standards (3733 / 2002 / QĐ - BYT) ≤ 85 dBA 9 Table 3.6 shows us that Noise on the fishing vessel at the port when engine is operated is exceeding Sanitation and Hygiene Standards.