Instrumental neutron activation analysis of ambient air dust particulates from metropolitan cities in India

Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material

“…A recent source apportionment study revealed that the main anthropogenic sources contributing to the concentrations of toxic metallic elements are vehicle and industrial emissions [3]. Based on these results, this work carefully concluded that relative to that in NIST SRM 1648a (St. Louis is an industrial township in Missouri, USA [51], and NIST SRM 1648a dust was collected in 1976-1977 [35]), the effect of vehicular emission in the KRISS urban dust CRM candidate (collected in 2019) is greater than the effect of industrial activity. In addition, the concentrations of toxic metallic elements seem to decrease in the KRISS urban dust as the use of toxic elements drops due to environmental regulations.…”

“…The source apportionment study of metallic elements demonstrated that the generation of Pb was related to a combination of two anthropogenic causes, namely, steel/smelting activity and vehicle emissions [3]. As lead was banned as a fuel additive in the USA in 1996, the Pb concentration in dust seems to have decreased significantly with Br (lead scavenger) concentration [19,50,51]. NIST SRM 1648a urban dust contains 6550 mg/kg of Pb, whereas KRISS urban dust contains only less than 150 mg/kg.…”

“…In the KRISS urban dust CRM candidate, 46 elements were analyzed using k 0 -INAA method, and the concentration levels for all elements were compared with those of NIST SRM 1648a (Table 2). NIST SRM 1648a is an urban PM that was collected from St. Louis, USA in 1976-1977 [35]; St. Louis is an industrial area in the state of Missouri [51]. The KRISS urban dust CRM candidate is the dust collected from air-ventilation filters installed on top of the buildings in metropolitan areas (Seoul/Gyeonggi-do City) in South Korea in 2019.…”

Use of Multiple Irradiations and Reference Materials as Comparators in Quality Control of Neutron Activation Analysis Data of Biological Samples

“…We have analyzed a large number of SRMs of different matrices derived from several agencies such as NIST (USA), IAEA (Vienna), INCT (Poland) and NIES (Japan) including synthetic multielemental standard along with other samples of medicinal herbs [8], herbal formulations [10] dust particulates from major Indian metropolitan cities [11]. In this study we present our results on the analysis of two synthetic multielemental standards along with our results for Na and K in 3 RMs of biological origin by four different irradiation periods.…”

Determinations of Sb and Mo in Cairo's dust using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid sample analysis

“…For this reason, alternative analytical techniques for direct solid sample analysis are of great interest. Neutron activation analysis (NAA) is one of the potential candidate techniques that do not require previous destruction of the sample and it was used for direct dust sample analysis (Chutke et al, 1994;Avino et al, 2008a); however, this technique is not available in most laboratories. Laserinduced breakdown spectroscopy (LIBS) has also been used as a powerful technique for investigating direct solid sample analysis (Asgill and Hahn, 2009).…”