Evidence on Interfacial Reaction Governing NO2 Hydrolysis in Deliquesced Aerosol Particles DOI Creative Commons
Ruifeng Zhang,

Rikuto Minamikawa,

Masao Gen

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

Heterogeneous NO2 hydrolysis forms nitrate and nitrous acid but is believed to proceed slowly in the atmosphere. Accelerated reactions microdroplets have gained significant attention, whether or not accelerated deliquesced particles remains unclear. We address gap by measuring size-dependent rates sulfate- halide-containing droplets. Results show that reaction Na2SO4 droplets increased 25-fold as particle radius decreased from ∼40 ∼4 μm. An even higher enhancement of ∼100 times was observed NaCl NaI particles, likely due NO2-halide interactions. The NaBr however, comparable particles. Kinetic modeling results illustrate are ∼6 orders magnitude factor (EF) surface over bulk-phase rates. Compared increase factors 2.3, 1.5, 4.4 NaCl, NaBr, respectively. Under ambient conditions, EFs can up 108, corresponding production >1 μg m-3 h-1. those N2O5 OH + pathways, making a crucial source reactive nitrogen species.

Язык: Английский

Groundwater Nitrate Contamination and its Effect on Human Health: A Review DOI
Indra Jeet Chaudhary, Ratna Chauhan, Sanjay S. Kale

и другие.

Water Conservation Science and Engineering, Год журнала: 2025, Номер 10(1)

Опубликована: Март 25, 2025

Язык: Английский

Процитировано

0
Evidence on Interfacial Reaction Governing NO2 Hydrolysis in Deliquesced Aerosol Particles DOI Creative Commons
Ruifeng Zhang,

Rikuto Minamikawa,

Masao Gen

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

Heterogeneous NO2 hydrolysis forms nitrate and nitrous acid but is believed to proceed slowly in the atmosphere. Accelerated reactions microdroplets have gained significant attention, whether or not accelerated deliquesced particles remains unclear. We address gap by measuring size-dependent rates sulfate- halide-containing droplets. Results show that reaction Na2SO4 droplets increased 25-fold as particle radius decreased from ∼40 ∼4 μm. An even higher enhancement of ∼100 times was observed NaCl NaI particles, likely due NO2-halide interactions. The NaBr however, comparable particles. Kinetic modeling results illustrate are ∼6 orders magnitude factor (EF) surface over bulk-phase rates. Compared increase factors 2.3, 1.5, 4.4 NaCl, NaBr, respectively. Under ambient conditions, EFs can up 108, corresponding production >1 μg m-3 h-1. those N2O5 OH + pathways, making a crucial source reactive nitrogen species.

Язык: Английский

Процитировано

0