Quantifying temporal and geographic variation in sunscreen and mineralogic titanium-containing nanoparticles in three recreational rivers

Engineering & Materials Science

• Sun hoods 100%
• Rivers 61%
• Nanoparticles 61%
• Titanium 60%
• TiO2 nanoparticles 36%
• Suspended sediments 23%
• Metal nanoparticles 21%
• Electron microscopy 16%
• Consumer products 16%
• Nanostructured materials 15%
• Salts 11%
• Sampling 8%
• Chemical analysis 8%
• Metals 8%
• Water 6%

Earth & Environmental Sciences

• geographical variation 75%
• titanium 61%
• nanoparticle 57%
• temporal variation 52%
• recreation 35%
• river 30%
• creek 15%
• industrial product 12%
• recreational activity 11%
• consumer product 11%
• titanium dioxide 10%
• nanomaterial 10%
• electron microscopy 9%
• suspended sediment 8%
• human activity 6%
• salt 6%
• detection 5%
• sampling 5%
• particle 4%
• comparison 3%
• water 2%
• analysis 2%

Chemical Compounds

• Sunscreening Agent 83%
• Nanoparticle 31%
• Suspended Sediment 23%
• Oxybenzone 22%
• Background Concentration 20%
• Nanoparticle Size 14%
• Metal Nanoparticle 12%
• Size Distribution 10%
• Electron Microscopy 10%
• Sampling 10%
• Titanium Dioxide 10%
• Nanomaterial 7%
• Environment 7%
• Metal 5%