Abstract
PM2.5 and gaseous pollutants (SO2, HNO2, HNO3, HCl, and NH3) were simultaneously collected by Partisol® Model 2300 Sequential Speciation Sampler with denuder-filter pack system in the spring of 2013 in Beijing. Water-soluble inorganic ions and gaseous pollutants were measured by Ion Chromatography. Results showed that the concentrations of NH3, NH4 + and PM2.5 had similar diurnal variation trends and their concentrations were higher at night than in daytime. The results of gas-to-particle conversion revealed that [NH3]:[NH4 +] ratio was usually higher than 1; however, it was less than 1 and the concentration of NH4 + increased significantly during the haze episode, indicating that NH3 played an important role in the formation of fine particle. Research on the sampling artifacts suggested that the volatilization loss of NH4 + was prevalent in the traditional single filter-based sampling. The excess loss of HNO3 and HCl resulted from ammonium-poor aerosols and semivolatile inorganic species had severe losses in the clean day, whereas the mass of NH4 + was usually overestimated during the single filter-based sampling due to the positive artifacts. Correlation analysis was used to evaluate the influence of meteorological conditions on the volatilization loss of NH4 +. It was found that the average relative humidity and temperature had great effects on the loss of NH4 +. The loss of NH4 + was significantly under high temperature and low humidity, and tended to increase with the increasing of absorption of gaseous pollutants by denuder. The total mass of volatile loss of NH4 +, NO3 − and Cl− could not be ignored and its maximum value was 12.17 μg m−3. Therefore it is important to compensate sampling artifacts for semivolatile inorganic species.
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References
Baek B H, Aneja V P. 2004a. Measurement and analysis of the relationship between ammonia, acid gases, and fine particles in Eastern North Carolina. J Air Waste Manage, 54: 623–633
Baek B H, Aneja V P, Tong Q. 2004b. Chemical coupling between ammonia, acid gases, and fine particles. Environ Pollut, 129: 89–98
Cheng Y H, Tsai C J. 1997. Evaporation loss of ammonium nitrate particles during filter sampling. J Aerosol Sci, 28: 1553–1567
Cheng Y, He K B, Duan F K, et al. 2010. Improved measurement of carbonaceous aerosol: Evaluation of the sampling artifacts and inter-comparison of the thermal-optical analysis methods. Atmos Chem Phys, 10: 8533–8548
Deng L Q, Li H, Chai F H, et al. 2011. The pollution charateristics of the atmospheric fine particles and related gaseous pollutions in the northeastern urban area of Beijing (in Chinese). Chin Environ Sci, 31: 1064–1070
Du H H, Kong L D, Cheng T, et al. 2010. Insights into ammonium particle-to-gas conversion: Non-sulfate ammonium coupling with nitrate and chloride. Aerosol Air Qual Res, 10: 589–595
Forrest J, Tanner R L, Spandau D, et al. 1980. Determination of total inorganic nitrate utilizing collection of nitric acid on NaCl—impregnated filters. Atmos Environ 14: 137–144
He K B, Yang F M, Ma Y L, et al. 2001. The characteristics of PM2.5 in Beijing, China. Atmos Environ, 35: 4959–4970
Liu Y, Li W L, Zhou X J. 2005. Simulation of secondary aerosols over north China in summer. Sci China Ser D-Earth Sci (Suppl II), 35: 185–195
Matsumoto M, Okita T. 1998. Long term measurements of atmospheric gaseous and aerosol species using an annular denuder system in Nara, Japan. Atmos Environ, 32: 1419–1425
Pathak R K, Wu W S, Wang T. 2009. Summertime PM2.5 ionic species in four major cities of China: Nitrate formation in an ammonia-deficient atmosphere. Atmos Chem Phys, 9: 1711–1722
Pathak R K, Chan C K. 2005. Inter-particle and gas-particle interactions in sampling artifacts of PM2.5 infilter-based samplers. Atnaos Environ, 2005, 39: 1597–1607
Seinfeld J H, Pandis S N. 2012. Atmospheric Chemistry and Physics: From Air Pollution to Climate Change. 2nd ed. Hoboken, New Jersey: John Wiley & Sons. 491–544
Sharma M, Kishore S, Tripathi S, et al. 2007. Role of atmospheric ammonia in the formation of inorganic secondary particulate matter: A study at Kanpur, India. J Atmos Chem, 58: 1–17
Stelson A W, Seinfeld J H. 1982. Relative humidity and temperature dependence of the ammonium nitrate dissociation constant. Atmos Environ (1967), 16: 983–992
Tan J H, Duna J C, He K B, et al. 2009a. Chemical characteristics of PM2.5 during a typical haze episode in Guangzhou. J Environ Sci, 21: 774–781
Tan J H, Duna J C, Chen D H, et al. 2009b. Chemical characteristics of haze during summer and winter in Guangzhou. Atmos Res, 94: 238–245
Tang I N. 1980. On the equilibrium partial pressures of nitric acid and ammonia in the atmosphere. Atmos Environ (1967), 14: 819–828
Tao J, Zhang L M, Engling G, et al, 2013. Chemical composition of PM2.5 in an urban environment in Chengdu, China: Importance of springtime dust storms and biomass burning. Atmos Res, 122: 270–283
Tao J, Zhang L M, Ho K F, et al, 2014. Impact of PM2.5 chemical compositions on aerosol light scattering in Guangzhou-The largest megacity in South China. Atmos Res, 135–136: 48–58
Turšič J, Berner A, Podkrajšek B, et al. 2004. Influence of ammonia on sulfate formation under haze conditions. Atmos Environ, 38: 2789–2795
USEPA. 1999. Compendium method for the determination of inorganic compounds in ambient air: Compendium method IO-4.2: Determination of reactive acidic and basic gases and strong acidity of atmospheric fine particles (<2.5 μm). EPA/625/R-96/010a
Wang S X, Xing J, Jang C, et al. 2011. Impact assessment of ammonia emissions on inorganic aerosols in East China using response surface modeling technique. Environ Sci Technol, 45: 9293–9300
Wang Y, Zhang Q Q, He K, et al. 2013. Sulfate-nitrate-ammonium aerosols over China: Response to 2000–2015 emission changes of sulfur dioxide, nitrogen oxides, and ammonia. Atmos Chem Phys, 13: 2635–2652
Wang Y S, Yao L, Wang L L, et al, 2014. Mechanism for the formation of the January 2013 heavy haze pollution episode over central and eastern China. China Sci Earth Sci, 57: 14–25
Yang F M, Tan J H, Zhao Q, et al. 2011. Characteristics of PM2.5 speciation in representative megacities and across China. Atmos Chem Phys, 11: 5207–5219
Ye X N, Ma Z, Zhang J C, et al. 2011. Important role of ammonia on haze formation in Shanghai. Environ Res Lett, 6: 024019
Yu X Y, Lee T, Ayres B, et al. 2006. Loss of fine particle ammonium from denuded nylon filters. Atmos Environ, 40: 4797–4807
Zhang X Q, McMurry P H. 1992. Evaporative losses of fine particulate nitrates during sampling. Atmos Environ. Part A. General Topics, 26: 3305–3312
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Wei, L., Duan, J., Tan, J. et al. Gas-to-particle conversion of atmospheric ammonia and sampling artifacts of ammonium in spring of Beijing. Sci. China Earth Sci. 58, 345–355 (2015). https://doi.org/10.1007/s11430-014-4986-1
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DOI: https://doi.org/10.1007/s11430-014-4986-1