Relationship between rain and snow acidity and air mass trajectory in eastern France

Colin, Jean-Louis; Renard, D.; Lescoat, V.; Jaffrezo, Jean-Luc; Gros, J. M.; Strauss, B.

doi:10.1016/0004-6981(89)90408-3

Cited by 61 publications

(16 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The annual average nss-SO42--to-NO3 -ratio is !.2, indicating that -50Vo of the acidity is due to H2SO 4 and the remaining half is due to HNOs. The ratio is similar to that observed by Colin et al [1989] in eastern France for the precipitation resulting from air masses transported from more polluted regions in northern and pH eastern Europe. A similar ratio was also reported for polluted SO4 2-and NO3-concentrations were 68 and 34 [teq L -1, 1994].…”

Section: Temporal Variationssupporting

confidence: 87%

Wet deposition of major ions and trace elements in the eastern Mediterranean basin

Al-Momani¹,

Aygün²,

Tuncel³

1998

J. Geophys. Res.

View full text Add to dashboard Cite

Section: Temporal Variationssupporting

confidence: 87%

Wet deposition of major ions and trace elements in the eastern Mediterranean basin

Al-Momani¹,

Aygün²,

Tuncel³

1998

J. Geophys. Res.

View full text Add to dashboard Cite

“…Nitrate acidity in Baton Rouge fogwater is also supported by the frequent ozone exceedances in this area, which is caused by NO x pollution. In contrast, HCl is less involved in fogwater acidity, even though its concentration may be comparable (Colin et al, 1989). Overall sea-salt contribution to inorganic composition of fogwater was minor.…”

Section: Ion Concentrationsmentioning

confidence: 53%

Monitoring of Fogwater Chemistry in the Gulf Coast Urban Industrial Corridor: Baton Rouge (Louisiana)

Raja

Ravikrishna

Kommalapati

et al. 2005

Environ Monit Assess

View full text Add to dashboard Cite

Seventeen fog events were sampled in Baton Rouge, Louisiana during 2002-2004 as part of characterizing wet deposition by fogwater in the heavily industrialized corridor along the Louisiana Gulf Coast in the United States. These samples were analyzed for chemical characteristics such as pH, conductivity, total organic and inorganic carbon, total metals and the principal ion concentrations. The dominant ionic species in all samples were NH4+, NO3-, Cl- and SO4(2-). The pH of the fogwater sampled had a mean value of 6.7 with two cases of acidic pH of 4.7. Rainwater and fogwater pH were similar in this region. The acidity of fogwater was a result of NO3- but partly offset by high NH4+. The measured gaseous SO2 accounted for a small percentage of the observed sulfate concentration, indicating additional gas-to-particle conversion of SO2 to sulfate in fogwater. The gaseous NOx accounted for most of the dissolved nitrate and nitrite concentration in fogwater. The high chloride concentration was attributable to the degradation of chlorinated organics in the atmosphere. The metal composition was traced directly to soil-derived aerosol precursors in the air. The major metals observed in fogwater were Na, K, Ca, Fe, Al, Mg and Zn. Of these Na, K, Ca and Mg were predominant with mean concentrations > 100 microM. Al, Fe and Zn were present in the samples, at mean concentrations < 100 microM. Small concentrations of Mn (7.8 microM), Cu (2 microM), Pb (0.07 microM) and As (0.32 microM) were also observed in the fogwaters, and these were shown to result from particulates (PM2.5) in the atmosphere. The contribution to both ions and metals from the marine sources in the Louisiana Gulf Coast was minimal. The concentrations of all principal ionic species and metals in fogwater were 1-2 orders of magnitude larger than in rainwater. Several linear alkane organic compounds were observed in the fogwater, representing the contributions from petroleum products at concentrations far exceeding their aqueous solubility. A pesticide (atrazine) was also observed in fogwater, representing the contribution from the agricultural activities nearby.

show abstract

“…Many studies have shown that air mass trajectories are a useful tool to describe dust transport at a synoptic scale [Reiffet al, 1986]. These trajectories, combined with geochemical or mineralogical tracers, have been used to determine the source regions of natural or anthropogenic particulate matter in various environments [Merrill, 1986;Bergametti, 1987;Colin et al, 1989]. In this study, two backward trajectories, ending at the 925-and 850-hPa barometric levels, have been computed for the median time of each sample.…”

Section: Discussionmentioning

confidence: 99%

African dust observed over Canary Islands: Source‐regions identification and transport pattern for some summer situations

Bergametti¹,

Gomès²,

Coudé-Gaussen³

et al. 1989

J. Geophys. Res.

146

View full text Add to dashboard Cite

Bulk filtration samples of dust were collected on Fuerteventura (Canary Islands) in July 1985 in order to investigate African dust transport over this region during summer. Air mass trajectories and elemental and mineralogical analyses allowed us to distinguish between oceanic and continental influences: three African dust transport cases occured during this period. Geochemical and mineralogical tracers, combined with air mass trajectories, indicate that two different source regions of dust (Sahelian and Moroccan ones) are involved. Each of these exhibits specific Si/Al and Fe/Al ratios that can be considered as tracers of dust origin. A meteorological study, based on satellite imagery, meteorological maps, and air mass trajectories, confirms the previous identification of the source region. It is also possible to describe the meteorological situation controlling the atmospheric pathway of the dusts from the source regions up to the Canary Islands. This study suggests that some source regions (especially the Sahelian one) of dust affecting the Canary Islands during summer are rather different from the Moroccan ones observed in a spring situation by Coudé‐Gaussen et al. (1987).

show abstract

Relationship between rain and snow acidity and air mass trajectory in eastern France

Cited by 61 publications

References 35 publications

Wet deposition of major ions and trace elements in the eastern Mediterranean basin

Wet deposition of major ions and trace elements in the eastern Mediterranean basin

Monitoring of Fogwater Chemistry in the Gulf Coast Urban Industrial Corridor: Baton Rouge (Louisiana)

African dust observed over Canary Islands: Source‐regions identification and transport pattern for some summer situations

Contact Info

Product

Resources

About