Hello, we have recently had a noise assessment carried out in our workplace. I am unsure what it means by LAeq and LCeq, please can any one explain this to me? Thanks katie

Very briefly. Noise level are rarely (never) consistent and go up and down, often considerably in many envirnments. So an leq level is the 'average' nosie level measured over a period. A and C are 'weightings' - for example A weighted measurements 'mimic' the response of the human ear to noise. Having both A and C weighted measurements is handy when using the HML method to help predict the reduction in noise levels for various ear protection. Hoep that helps a little, also have a look on the HSE site for the NAW stuff