Hydrocarbon concentrations were determined in bulk, wet, and dry deposition samples from urban and non-urban locations surrounding lower Chesapeake Bay. Mean hydrocarbon concentrations in bulk deposition samples were over three times greater at the urban station indicating a localized source. The major hydrocarbons present were n-alkanes, polycyclic aromatic hydrocarbons (PAH), and the unresolved complex mixture (UCM). The PAH and the UCM were an indication of significant anthropogenic inputs while the odd/even distribution of the n-alkanes was an indication of biogenic sources. These findings indicated seasonal trends of highest biogenic hydrocarbon inputs in the spring and summer months and highest anthropogenic inputs in the winter months.
The similarity of the hydrocarbons in bulk and dry deposition, the small concentration of hydrocarbons in wet deposition, the large percentage of hydrocarbons associated with particulates, the small washout ratio and the larger size particulates in bulk deposition samples all indicated that dry deposition is the major mechanism for the removal of non-volatile/ high molecular weight atmospheric hydrocarbons.
The atmospheric input of anthropogenic hydrocarbons to Chesapeake Bay through atmospheric deposition was determined to be at least 125 metric tons annually. Therefore, aerial input may be a significant source of hydrocarbon pollution to the Bay. Reproduced
","abstract_html":"<p>Hydrocarbon concentrations were determined in bulk, wet, and dry deposition samples from urban and non-urban locations surrounding lower Chesapeake Bay. Mean hydrocarbon concentrations in bulk deposition samples were over three times greater at the urban station indicating a localized source. The major hydrocarbons present were n-alkanes, polycyclic aromatic hydrocarbons (PAH), and the unresolved complex mixture (UCM). The PAH and the UCM were an indication of significant anthropogenic inputs while the odd/even distribution of the n-alkanes was an indication of biogenic sources. These findings indicated seasonal trends of highest biogenic hydrocarbon inputs in the spring and summer months and highest anthropogenic inputs in the winter months.</p> <p>The similarity of the hydrocarbons in bulk and dry deposition, the small concentration of hydrocarbons in wet deposition, the large percentage of hydrocarbons associated with particulates, the small washout ratio and the larger size particulates in bulk deposition samples all indicated that dry deposition is the major mechanism for the removal of non-volatile/ high molecular weight atmospheric hydrocarbons.</p> <p>The atmospheric input of anthropogenic hydrocarbons to Chesapeake Bay through atmospheric deposition was determined to be at least 125 metric tons annually. Therefore, aerial input may be a significant source of hydrocarbon pollution to the Bay. Reproduced</p>","abstract_has_math":false,"creators":["Webber, David Benjamin"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Ocean & Earth Sciences","degree_department":null,"school":null,"contributors":["Terry L. Wade","Robert C. Harriss","Frank E. Scully, Jr."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1982,"date_issued":"1982-04-01T08:00:00Z","date_published":"1982-04-01T08:00:00Z","updated_at":"2026-07-24T03:35:00Z","subjects":["Atmospheric chemistry","Hydrocarbons","Chesapeake Bay","Atmospheric Sciences","Chemistry","Environmental Sciences","Oceanography"],"languages":[],"rights":["In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.odu.edu/oeas_etds/90","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Terry L. Wade","Robert C. Harriss","Frank E. Scully, Jr."]},{"key":"dc:creator","label":"Author","values":["Webber, David Benjamin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2019-07-22T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Ocean & Earth Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Atmospheric chemistry","Hydrocarbons","Chesapeake Bay","Atmospheric Sciences","Chemistry","Environmental Sciences","Oceanography"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
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The similarity of the hydrocarbons in bulk and dry deposition, the small concentration of hydrocarbons in wet deposition, the large percentage of hydrocarbons associated with particulates, the small washout ratio and the larger size particulates in bulk deposition samples all indicated that dry deposition is the major mechanism for the removal of non-volatile/ high molecular weight atmospheric hydrocarbons.
The atmospheric input of anthropogenic hydrocarbons to Chesapeake Bay through atmospheric deposition was determined to be at least 125 metric tons annually. Therefore, aerial input may be a significant source of hydrocarbon pollution to the Bay. Reproduced
"]},{"key":"dc:title","label":"Title","values":["The Temporal and Spatial Distribution of Hydrocarbons in Atmospheric Deposition From Stations Surrounding Lower Chesapeake Bay"]}]}],"canonical_facts":{"dc:contributor":["Terry L. Wade","Robert C. Harriss","Frank E. Scully, Jr."],"dc:creator":["Webber, David Benjamin"],"dc:date.available":["2019-07-22T07:00:00Z"],"dc:description.abstract":["Hydrocarbon concentrations were determined in bulk, wet, and dry deposition samples from urban and non-urban locations surrounding lower Chesapeake Bay. Mean hydrocarbon concentrations in bulk deposition samples were over three times greater at the urban station indicating a localized source. The major hydrocarbons present were n-alkanes, polycyclic aromatic hydrocarbons (PAH), and the unresolved complex mixture (UCM). The PAH and the UCM were an indication of significant anthropogenic inputs while the odd/even distribution of the n-alkanes was an indication of biogenic sources. These findings indicated seasonal trends of highest biogenic hydrocarbon inputs in the spring and summer months and highest anthropogenic inputs in the winter months.
The similarity of the hydrocarbons in bulk and dry deposition, the small concentration of hydrocarbons in wet deposition, the large percentage of hydrocarbons associated with particulates, the small washout ratio and the larger size particulates in bulk deposition samples all indicated that dry deposition is the major mechanism for the removal of non-volatile/ high molecular weight atmospheric hydrocarbons.
The atmospheric input of anthropogenic hydrocarbons to Chesapeake Bay through atmospheric deposition was determined to be at least 125 metric tons annually. Therefore, aerial input may be a significant source of hydrocarbon pollution to the Bay. Reproduced
"],"dc:identifier":["https://digitalcommons.odu.edu/oeas_etds/90"],"dc:rights":["In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
"],"dc:subject":["Atmospheric chemistry","Hydrocarbons","Chesapeake Bay","Atmospheric Sciences","Chemistry","Environmental Sciences","Oceanography"],"dc:title":["The Temporal and Spatial Distribution of Hydrocarbons in Atmospheric Deposition From Stations Surrounding Lower Chesapeake Bay"],"thesis:degree_discipline":["Ocean & Earth Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T03:35:00Z"}