Perchlorate in dust fall and indoor dust in Malta: An effect of fireworks

Vella, Alfred J.; Chircop, Cynthia; Micallef, Tamara; Pace, Colette

doi:10.1016/j.scitotenv.2015.03.071

Cited by 27 publications

(9 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We havea lready shown that the local air quality during the entire summer periodi sr educed as ar esult of fireworks [ 16] and the indoor environment is also chemically contaminated and remains so well beyond the end of festivities [ 17].I nl argerc ountriess uch as China or India or Japan, where pyrotechnic activity may be more temporally restricted but likely involves tremendously larger quantities of materials, the full extenta nd effect of impact from hazardous firework wastes may not be known or properly assessed and this case studyf rom Malta might provide useful insight and information. …”

mentioning

confidence: 99%

Emission Factors for Aerial Pyrotechnics and Use in Assessing Environmental Impact of Firework Displays: Case Study from Malta

Camilleri

Vella

2015

Propellants Explo Pyrotec

Self Cite

View full text Add to dashboard Cite

The Two Towers, of fruitful collaboration between the teams of Margherita Barbero at Turin University (Turin, left) and Pier Giorgio Cozzi at Bologna University (Bologna, right) came together in their Full Paper on in describing a simple and affordable procedure for organocatalytic alkylations using stable and easily prepared o‐benzenedisulfonimide salts of (3‐indolyl)methylium carbenium ions. Normally these ions are often used as precursors in organocatalysis and are generated in situ. Good yields of up to 95% and high enantioselectivity of up to 97% accompany the procedure, which works with the commercially available Hayashi–Jørgensen catalyst and a variety of aldehydes.

show abstract

mentioning

confidence: 99%

Emission Factors for Aerial Pyrotechnics and Use in Assessing Environmental Impact of Firework Displays: Case Study from Malta

Camilleri

Vella

2015

Propellants Explo Pyrotec

Self Cite

View full text Add to dashboard Cite

show abstract

“…Perchlorate in localized pollution may become airborne and possibly be transported to remote areas via atmospheric circulation. In the atmosphere, however, the nonvolatile perchlorate is likely associated with dust, which is generally not transported efficiently over long distances, and therefore unlikely to be recorded in Arctic snow. In addition, industrial production of perchlorate in the United States is estimated to have peaked during the late 1980s, whereas the perchlorate concentrations in Greenland snow are highest in the early and mid-1990s (Figure ).…”

Section: Resultsmentioning

confidence: 99%

Evidence of Influence of Human Activities and Volcanic Eruptions on Environmental Perchlorate from a 300-Year Greenland Ice Core Record

Cole‐Dai

Peterson

Kennedy

et al. 2018

Environ. Sci. Technol.

View full text Add to dashboard Cite

A 300-year (1700-2007) chronological record of environmental perchlorate, reconstructed from high-resolution analysis of a central Greenland ice core, shows that perchlorate levels in the post-1980 atm were two-to-three times those of the pre-1980 environment. While this confirms recent reports of increased perchlorate in Arctic snow since 1980 compared with the levels for the prior decades (1930-1980), the longer Greenland record demonstrates that the Industrial Revolution and other human activities, which emitted large quantities of pollutants and contaminants, did not significantly impact environmental perchlorate, as perchlorate levels remained stable throughout the 18, 19, and much of the 20 centuries. The increased levels since 1980 likely result from enhanced atmospheric perchlorate production, rather than from direct release from perchlorate manufacturing and applications. The enhancement is probably influenced by the emission of organic chlorine compounds in the last several decades. Prior to 1980, no significant long-term temporal trends in perchlorate concentration are observed. Brief (a few years) high-concentration episodes appear frequently over an apparently stable and low background (∼1 ng kg). Several such episodes coincide in time with large explosive volcanic eruptions including the 1912 Novarupta/Katmai eruption in Alaska. It appears that atmospheric perchlorate production is impacted by large eruptions in both high- and low-latitudes, but not by small eruptions and nonexplosive degassing.

show abstract

“…The common mobile phases in IEC are sodium hydroxide (3) , potassium hydroxide (4) , sodium carbonate (5) and sodium bicarbonate (6) . Carbonate was an attractive mobile phase for IEC mobile phases which was often used because of its good exchange capacity, non-pollution and convenience for separation of the common anions (7) .…”

Section: Introductionmentioning

confidence: 99%

Usage of Ionic Liquids as Additives in Ion Exchange Chromatography for the Analysis of Inorganic Anions

Wang

Zhu

2018

Proceedings of the 6th IIAE International Conference on Industrial Application Engineering 2018

View full text Add to dashboard Cite

A research of the performance of five imidazolium-based ionic liquids (ILs) (the bromides, tetrafluoroborates and hexafluorophosphates of 1-butyl, 1-hexyl and 1-octyl-3methylimidazolium) as additives in ion exchange chromatographic (IEC) behavior of inorganic anion (NO3 -) was studied. The results showed that the IL 1-butyl-3methyl-imidazolium hexafluorophosphate (BMIMPF6) offered the most interesting feature in separation of inorganic anions, such as lower retention time and great peak height. In order to separate anions effectively, the best condition was selected that is to add 0.30 mM BMIMPF6 in IEC mobile phase for desperation of nitrate with the flow rate of 0.7 mL• min -1 at room temperature. In the range of 1.0~60 µg• mL -1 , linear equations of nitrate was made. The limit of detection of nitrate was 4.4 µg• L -1 . In this work, nitrate in water samples were detected successfully.

show abstract

Perchlorate in dust fall and indoor dust in Malta: An effect of fireworks

Cited by 27 publications

References 26 publications

Emission Factors for Aerial Pyrotechnics and Use in Assessing Environmental Impact of Firework Displays: Case Study from Malta

Emission Factors for Aerial Pyrotechnics and Use in Assessing Environmental Impact of Firework Displays: Case Study from Malta

Evidence of Influence of Human Activities and Volcanic Eruptions on Environmental Perchlorate from a 300-Year Greenland Ice Core Record

Usage of Ionic Liquids as Additives in Ion Exchange Chromatography for the Analysis of Inorganic Anions

Contact Info

Product

Resources

About