0ba0c9c5_t_Red_104___Environment_Canada_Summary_table_Response
[Topic] Releases to the environment [Comment] The screening assessment appears to contain a contradiction regarding estimated releases and losses of C.I. Pigment Yellow 34 as compared to C.I. Pigment Red 104, which have almost identical manufacture and use. The screening assessment states that the distribution to water is 35.3 % for C.I. Pigment Yellow 34 and 7.9% for Pigment Red 104. Distribution to waste disposal is stated as 62.7% for C.I. Pigment Yellow 34 and 87.9% for C.I. Pigment Red 104. [Response] 
The higher proportion of releases of C.I. Pigment Yellow 34 to water (35.3%) compared to C.I. Pigment Red 104 (7.9%) is mainly due to a higher use proportion of C.I. Pigment Yellow 34 for activities having higher post-application or service life releases. The higher proportion of C.I. Pigment Yellow 34 lost to water compared to C.I. Pigment Red 104 also explains principally the difference in the proportion sent to waste disposal.
Public comments for C.I. Pigment Red 104 - Environment Canada