Further investigations should also be carried out to assess whether it is necessary to set a limit value for PAHs mixtures in order to better protect workers from those mixtures.
Ba cheart imscrúduithe breise a dhéanamh freisin lena mheasúnú an gá teorainnluach a shocrú do mheascáin PAHanna d'fhonn oibrithe a chosaint ar na meascáin sin ar bhealach níos fearr.