Indoor transfluthrin concentration levels during and after the application of electric vaporizers using a Proton-Transfer-Reaction Mass Spectrometer

Vesin, Aude; Quivet, Étienne; Temime-Roussel, Brice; Wortham, Henri

doi:10.1016/j.atmosenv.2012.10.021

Cited by 11 publications

(19 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…fragmentation at the ester bond. This is consistent with previous experiments of pyrethroid compounds similar to permethrin using electron impact ionization that showed fragmentation at the ester bond (Vesin et al, 2013), the same bond at which the fragmentation occurs in this study. Similarly, the intact metolachlor molecule was not detected as a quasimolecular ion ([I q M] − , i.e., as an iodide cluster with the parent molecule at m/z 410.79) during either room temperature or heated injections, but instead as a fragment clustered to iodide ([I q C 11 H 14 ClNO] − , at m/z 337.98).…”

Section: Fragmented Pesticidessupporting

confidence: 82%

“…Unlike previous work shown in Table 2, the iodide ToF-CIMS detected the pesticides in situ with no collection, extraction, and separation on a gas or liquid chromatograph, enabling rapid (1 Hz) detection. The LODs we report are comparable to those reported by Vesin et al for online, in situ measurement of transfluthrin, a pyrethroid compound that is structurally similar to permethrin (Vesin et al, 2013). However, LODs calculated in this work are larger than other techniques and could be improved by longer averaging of sampling time (1-5 min).…”

Section: Pesticide Calibrationssupporting

confidence: 71%

“…Atkinson et al (1999) reported rapid trifluralin reaction with the OH radical (> 1 × 10 −10 cm 3 molecules −1 s −1 ) and photolysis rates on the order of minutes, while the halflife for atrazine plus OH is 2.6 h for a global average radical concentration of 1 × 10 6 molecules cm −3 . As an example of the need for rapid detection for indoor exposure estimates, Vesin et al showed that pesticides must be measured rapidly (< 1 h) due to high emission variation from electronic vaporizers (Vesin et al, 2013). Here, we investigate the use of chemical ionization mass spectrometry for real-time in situ atmospheric pesticide measurement.…”

Section: T Murschell Et Al: Gas-phase Pesticide Measurementmentioning

confidence: 99%

See 2 more Smart Citations

Gas-phase pesticide measurement using iodide ionization time-of-flight mass spectrometry

2017

View full text Add to dashboard Cite

Abstract. Volatilization and subsequent processing in the atmosphere are an important environmental pathway for the transport and chemical fate of pesticides. However, these processes remain a particularly poorly understood component of pesticide lifecycles due to analytical challenges in measuring pesticides in the atmosphere. Most pesticide measurements require long (hours to days) sampling times coupled with offline analysis, inhibiting observation of meteorologically driven events or investigation of rapid oxidation chemistry. Here, we present chemical ionization time-of-flight mass spectrometry with iodide reagent ions as a fast and sensitive measurement of four current-use pesticides. These semivolatile pesticides were calibrated with injections of solutions onto a filter and subsequently volatilized to generate gas-phase analytes. Trifluralin and atrazine are detected as iodide-molecule adducts, while permethrin and metolachlor are detected as adducts between iodide and fragments of the parent analyte molecule. Limits of detection (1 s) are 0.37, 0.67, 0.56, and 1.1 µg m −3 for gas-phase trifluralin, metolachlor, atrazine, and permethrin, respectively. The sensitivities of trifluralin and metolachlor depend on relative humidity, changing as much as 70 and 59, respectively, as relative humidity of the sample air varies from 0 to 80 %. This measurement approach is thus appropriate for laboratory experiments and potentially near-source field measurements.

show abstract

Section: Fragmented Pesticidessupporting

confidence: 82%

Section: Pesticide Calibrationssupporting

confidence: 71%

Section: T Murschell Et Al: Gas-phase Pesticide Measurementmentioning

confidence: 99%

See 1 more Smart Citation

Gas-phase pesticide measurement using iodide ionization time-of-flight mass spectrometry

2017

View full text Add to dashboard Cite

show abstract

“…Because pyrethroid and organophosphorus are contained in various household products such as insecticide sprays, liquid mosquito killer, mothballs, and gardening insecticides (Utsunomiya, Hasegawa, and Mori 1997;Saito et al 2008;Vesin et al 2013), it is suggested that indoor environments may also constitute a significant insecticide exposure source (Heudorf and Angerer 2001;Meeker, Barr, and Hauser 2008). Furthermore, some pyrethroid insecticides are known to be neurotoxic (Shafer, Meyer, and Crofton 2005;Williams et al 2008), and their endocrine disrupting properties have also been documented (Meeker, Barr, and Hauser 2009).…”

Section: Introductionmentioning

confidence: 94%

Determination of Pyrethroid and Organophosphorus Insecticides in Indoor Air by Microwave-Assisted Extraction with Gas Chromatography/Mass Spectrometry

Otake

Numata

2014

Analytical Letters

View full text Add to dashboard Cite

The goal of this study was to evaluate the efficiency of microwave-assisted extraction for the recovery of pyrethroid and organophosphorus insecticides adsorbed on quartz fiber filters and C18 disks used for indoor air sampling. The extraction solvent, temperature, and time were optimized by spiking tests. The recoveries for the insecticides obtained by microwave-assisted extraction with acetone at 50 C for 5 min were between 71.9% and 119.2% with relative standard deviations between 0.3% and 9.3% at two spike levels (0.1 lg and 1.0 lg). The results of the microwave-assisted extraction under the validation conditions were comparable to those obtained by Soxhlet extraction, which was used as a reference technique. In a preliminary analysis, resmethrin and tetramethrin were determined in the indoor air of an apartment unit at concentrations of 7.8 ng/m 3 and 66.0 ng/m 3 , respectively, using the microwave-assisted extraction-based method with gas chromatography/mass spectrometry.

show abstract

“…A possible accumulation in poorly ventilated indoor environments ought to be considered (Vesin et al [21]). …”

Section: Degradation Productsmentioning

confidence: 99%

Heterogeneous oxidation of pesticides on the aerosol condensed phase

Socorro

2015

WIT Transactions on Ecology and the Environment

View full text Add to dashboard Cite

Pesticides are widely used all over the world. It is known that they exhibit adverse health effects and environmental risks due to their physico-chemical properties and their extensive use, which is growing every year. They are distributed in the atmosphere, an important vector of dissemination, over long distances away from the target area. The partitioning of pesticides between the gas and particulate phases influences their atmospheric fate. Most of the pesticides are semi-volatile compounds, emphasizing the importance of assessing their heterogeneous reactivity towards atmospheric oxidants. The photolysis processing and heterogeneous reactivity towards O3 and OH, was evaluated of eight commonly used pesticides adsorbed in silica particles. Silica particles are present in airborne mineral dust in atmospheric aerosols, and heterogeneous reactions can be different in the presence of these mineral particles. Depending on their origin and conditioning, aerosol particles containing pesticides can have complex and highly porous microstructures, which are influenced by electric charge effects and interaction with water vapour. Therefore, the kinetic experiments and consecutive product studies were performed at atmospherically relevant relative humidity (RH) of 55%. The identification of surface-bound products was performed using GC-(QqQ)-MS/MS and the gas-phase products were monitored on-line by PTRToF-MS. The obtained results will allow a better understanding of the impact of pesticides and their degradation products on human health, and to make recommendations in order to reduce population exposure to the pesticide plume and the pollution by phyto-sanitary products on the regional scale, which constitutes a necessary step in the development of environmental strategies.

show abstract

Indoor transfluthrin concentration levels during and after the application of electric vaporizers using a Proton-Transfer-Reaction Mass Spectrometer

Cited by 11 publications

References 32 publications

Gas-phase pesticide measurement using iodide ionization time-of-flight mass spectrometry

Gas-phase pesticide measurement using iodide ionization time-of-flight mass spectrometry

Determination of Pyrethroid and Organophosphorus Insecticides in Indoor Air by Microwave-Assisted Extraction with Gas Chromatography/Mass Spectrometry

Heterogeneous oxidation of pesticides on the aerosol condensed phase

Contact Info

Product

Resources

About