McKee, L. J.; Bonnema, A.; David, N.; Davis, J. A.; Franz, A.; Grace, R.; Greenfield, B. K.; Gilbreath, A. N.; Grosso, C.; Heim, W.; et al. 2017. Long-term variation in concentrations and mass loads in a semi-arid watershed influenced by historic mercury mining and urban pollutant sources. Science of The Total Environment 605-606, 482-497 . SFEI Contribution No. 831.

David, N.; Gluchowski, D. C.; Leatherbarrow, J. E.; Yee, D.; McKee, L. J.  . 2015. Estimation of Contaminant Loads from the Sacramento-San Joaquin River Delta to San Francisco Bay. Water Environment Research 87 (4), 334-346.
Contaminant concentrations from the Sacramento-San Joaquin River watershed were determined in water samples mainly during flood flows in an ongoing effort to describe contaminant loads entering San Francisco Bay, CA, USA. Calculated PCB and total mercury loads during the 6-year observation period ranged between 3.9 and 19 kg/yr and 61 and 410 kg/yr, respectively. Long-term average PCB loads were estimated at 7.7 kg/yr and total mercury loads were estimated at 200 kg/yr. Also monitored were PAHs, PBDEs (two years of data), and dioxins/furans (one year of data) with average loads of 392, 11, and 0.15/0.014 (OCDD/OCDF) kg/yr, respectively. Organochlorine pesticide loads were estimated at 9.9 kg/yr (DDT), 1.6 kg/yr (chlordane), and 2.2 kg/yr (dieldrin). Selenium loads were estimated at 16 300 kg/yr. With the exception of selenium, all average contaminant loads described in the present study were close to or below regulatory load allocations established for North San Francisco Bay.

David, N.; Leatherbarrow, J. E.; Yee, D.; McKee, L. J.  . 2014. Removal efficiencies of a bioretention system for trace metals, PCBs, PAHs, and dioxins in a semiarid environment. Journal of Environmental Engineering.

Allen, R.; David, N.; Franz, A.; Gluchowski, D.; Grosso, C.; Ross, J.; Sedlak, M.; Yee, D.; Wong, A. 2012. 2010 Annual Monitoring Results. San Francisco Estuary Institute: Richmond, CA.

David, N.; Gluchowski, D. C.; Leatherbarrow, J. E.; Yee, D.; McKee, L. J.  . 2012. Estimation of Loads of Mercury, Selenium, PCBs, PAHs, PBDEs, Dioxins, and Organochlorine Pesticides from the Sacramento-San Joaquin River Delta to San Francisco Bay. San Francisco Estuary Institute: Richmond, CA.

David, N.; Lent, M. A.; Leatherbarrow, J. E.; Yee, D.; McKee, L. J.  . 2011. Bioretention Monitoring at the Daly City Library (Case Study Technical Report). San Francisco Estuary Institute: Oakland, CA.

Gluchowski, D.; David, N.; McKee, L. J.  .; Leatherbarrow, J. E. 2011. Estimation of Loads of Mercury, PCBs, PBDEs, PAHs, Dioxins, and Furans from the Sacramento-San Joaquin River Delta to San Francisco Bay.

David, N.; Thomas, F. 2010. Comparison of Agricultural Runoff from Conventional and Organic Orchards.

David, N. 2009. Best Management Practices in Stone Fruit Project. San Francisco Estuary Institite: Oakland, Ca.

David, N. 2009. Comparison of Agricultural Runoff between Organic Farming and Conventional Chemical Farming.

David, N.; McKee, L. J.  . 2009. Going Organic Project.  SFEI Contribution No. 588. San Francisco Estuary Institute: Oakland, Ca.

David, N.; McKee, L. J.  .; Krebs, J. 2009. Green Infill for Clean Stormwater (Poster).

David, N.; McKee, L. J.  . 2009. Mercury Concentrations and Loads in a Large River System Tributary to San Francisco Bay, California, USA. Environmental Toxicology and Chemistry.

David, N. 2009. Sustainable Cotton Project.  SFEI Contribution No. 592. San Francisco Estuary Institute: Oakland, Ca.

David, N.; Eacock, M. C. S.; McGahan, J. C.; Beckon, W. N. 2008. Agricultural Drainage through the Grassland Bypass Project.

McKee, L. J.  .; Gilbreath, A. N.; Looker, R.; Mangarella, P.; Yee, D.; Leatherbarrow, J. E.; David, N. 2008. San Francisco Bay Mercury Loads: Scientific information development and management response. Harmonizing River Catchment and Estuary.

David, N.; Thomas, F.; Gibbs, M. 2007. Comparison of Agricultural Run-off between Biological Farming and Conventional Chemical Farming.

David, N.; Thomas, F.; Gibbs, M. 2007. Comparison of Agricultural Run-off between Biological Farming and Conventional Chemical Farming.

David, N.; Greenfield, B. K.; Siemering, G. S. 2006. Evaluating impacts of Lake Maid plant control. Journal of Aquatic Plant Management 44, 60-66.

McKee, L. J.  .; David, N.; Leatherbarrow, J. E. 2006. Mercury Transport to San Francisco Bay Through the Sacramento-San Joaquin River Delta.

Oram, J. J.; Greenfield, B. K.; Davis, J. A.; David, N.; Leatherbarrow, J. E. 2006. Organochlorine Pesticide Fate in San Francisco Bay.  SFEI Contribution No. 433. San Francisco Estuary Institute: Oakland, CA. p 48.

McKee, L. J.  .; David, N.; Leatherbarrow, J. E. 2006. Riverine Transport of Sediment and Mercury to North San Francisco Bay.

Greenfield, B. K.; Howard, V.; Andrews, S.; McNabb, T. P.; Shonkoff, S. B.; Chan, W. K.; Liow, P. S.; Donovan, M. J.; Ksander, G. G.; Spencer, D. F.; et al. 2005. Aquatic Pesticides Monitoring Program Nonchemical Alternatives Year 3 Final Report.  SFEI Contribution No. 390. San Francisco Estuary Institute.

David, N.; Beckon, W. N.; Eacock, C.; McGahan, J. 2005. Control of Agricultural Drainage Water and Restoration of Wetland Water Supply Channels.

Greenfield, B. K.; Siemering, G.; David, N. 2005. Evaluating impacts of Lake Sweeper plant control. J. of Aquatic Plant Management . SFEI Contribution No. 461.

Yee, D.; Ross, J. R. M.; David, N.; Leatherbarrow, J. E. 2005. Fate of Contaminants in Sediment of San Francisco Estuary: A Review of Literature and Data - Final Report.  SFEI Contribution No. 394. San Francisco Estuary Institute: Oakland.

McKee, L. J.  .; David, N.; Leatherbarrow, J. E. 2005. Mercury transport to San Francisco Bay through the Sacramento-San Joaquin River Delta.

Greenfield, B. K.; Siemering, G.; David, N.; Hunt, J.; Wittmann, M. 2004. Aquatic Pesticides Alternatives Literature Review, Review of Alternative Aquatic PestControl Methods For California Waters.

Greenfield, B. K.; Davis, J. A.; David, N.; Shonkoff, S. B.; Wittner, E. 2004. Monitoring Trace Organic Contamination in Central Valley Fish: Current Data and Future Steps.  SFEI Contribution No. 99. San Francisco Estuary Institute: Oakland, CA.

David, N.; Shonkoff, S. B.; Hayworth, J. 2004. Phase 2 (2003) Bioassessment of Waterbodies Treated with Aquatic Pesticides.  SFEI Contribution No. 117. San Francisco Estuary Insitute: Oakland, CA.

Greenfield, B. K.; Siemering, G.; David, N.; Hunt, J.; Wittmann, M. 2004. Review of Alternative Aquatic Pest Control Methods For California Waters.  SFEI Contribution No. 96. San Francisco Estuary Institute: Oakland, CA. p 109 pp.

Lowe, S.; Ross, J. R. M.; David, N.; Hunt, J.; Oros, D. R.; Leatherbarrow, J. E.; Grosso, C. 2004. San Francisco Estuary Regional Monitoring Program (RMP) Annual Monitoring Results, 2002.  SFEI Contribution No. 466. San Francisco Estuary Institute: Oakland, CA.

Siemering, G.; David, N.; Franz, A.; Malamud-Roam, F.; Hayworth, J. 2003. Aquatic Pesticide Monitoring Program Literature Review.  SFEI Contribution No. 71. San Francisco Estuary Institute: Oakland, CA.

Greenfield, B. K.; Davis, J. A.; David, N.; Leatherbarrow, J. E. 2003. Choosing a Future Bay: The Long - Term Fate of PCBs and Other Organics.

David, N.; McKee, L. J.  .; Krebs, J. 2003. Green Infill for Clean Stormwater.

Greenfield, B. K.; Siemering, G.; David, N. 2003. A new research program on non-chemical pest control in California waters.

Greenfield, B. K.; Siemering, G.; David, N. 2003. Non-Chemical Aquatic Plant Control (presented at.

Lowe, S.; David, N.; Oros, D. R.; Jarman, W. M.; Lowe, T.; Davis, J. A. 2003. Surveillance for previously unmonitored organic contaminants in the San Francisco Estuary. Marine Pollution Bulletin 46, 1102-1110.

Lowe, S.; David, N.; Oros, D. R.; Jarman, W. M.; Lowe, T.; Davis, J. A. 2003. Surveillance for previously unmonitored organic contaminants in the San Francisco Estuary. Marine Pollution Bulletin 46, 1102-1110 . SFEI Contribution No. 295.

Davis, J. A.; Lowe, S.; David, N.; Oros, D. R.; Jarman, W. M.; Lowe, T. 2003. Surveillance for previously unmonitored organic contaminants in the San Francisco Estuary. Marine Pollution Bulletin 46 (9), 1102-10 . SFEI Contribution No. 469.

David, N.; Oros, D. R. 2002. Identification and evaluation of unidentified organic contaminants in the San Francisco Estuary.  SFEI Contribution No. 45. San Francisco Estuary Institute: Oakland, CA.

David, N.; Oros, D. R.; Risebrough, R. 2002. Surveillance Monitoring in the RMP.

David, N.; Bell, D.; Gold, J. 2001. Field Sampling Manual for the Regional Monitoring Program for Trace Substances. San Francisco Estuary Institute: Richmond, CA.