Figure 4.1.12: Publishing activity for selected contaminants of emerging concern, 1950–2013 1, 4 - D i o x an e
P e r c h l o r a t e
10 0 15 0 20 0 25 0
5 0 0 TC A A
5 0 0 4 0 0 3 0 0
10 0 20 0
0 6 0 0 0 4 0 0 0 2 0 0 0 0
Shown is the sum of publications per year by contaminant and publication trend lines computed from three-year averages of annual publication activity. This means that interest in research is going up. Source: Halden 2014
Calendar Year D D T TC E P r i o n s N a n o - m a t e r i al s N D M A M TB E TC S TC C