Abstract

A review of the theoretical and empirical information that has been used in modeling dry deposition over water reveals uncertainty up to the order of magnitude level for particles in the important 0.5 to 5 μm range of diameter. Much of this is attributable to uncertainty in identifying the mechanisms controlling this transport. The results do indicate that dry deposition velocities are a function of particle size as well as windspeed, surface roughness, reference height, stability, and possibly relative humidity. Surface microlayers may affect roughness, but they are unlikely to exert significant control over deposition rates except on a very local level. Estimates of potential lake-derived concentrations in air indicate that bubble ejection may prove important in evaluating net atmospheric loading rates for some metallic species and perhaps organic substances as well.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.