I will present an analysis combining the simultaneous measurement of intergalactic absorption by hydrogen (HI Lyman-alpha forest), helium (HeII Lyman-alpha forest), and oxygen (OVI) in quasar spectra using pixel statistics and large-scale filtering. These tracers allow us to study inhomogenities in the UV background. We detect inhomogeneities on scales of ~10 cMpc and > 200 cMpc. We also apply our analysis to the HeII Gunn-Peterson trough and find no evidence of helium reionization when compared to HeII forest data. Our results have implications for z>2 ionizing sources.