@article{fdi:010085225,
  title = {{C}haracterization of deposited dust and its respirable fractions in underground coal mines : implications for oxidative potential-driving species and source apportionment},
  author = {{S}hangguan, {Y}. {F}. and {Z}huang, {X}. {G}. and {Q}uerol, {X}. and {L}i, {B}. {Q}. and {M}oreno, {N}. and {T}rechera, {P}. and {S}ola, {P}. {C}. and {U}zu, {G}a{\¨e}lle and {L}i, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{O}xidative potential ({OP}) is considered to be an efficient indicator of particulate matter ({PM}) to induce oxidative stress in the lungs and is increasingly considered to be a relevant health metric. {I}n this study, two complementary {OP} assays were deployed, including dithiothreitol ({DTT}) and ascorbic acid ({AA}) assays, to investigate the po-tential toxicity (as generators of oxidative stress) of respirable fractions ({DD}4, < 4 mu m) of deposited dust ({DD}500, < 500 mu m) in underground low-{S} and low-pyrite coal mines in {H}enan {P}rovince, {C}entral {C}hina. {T}he {OPDTT} of {DD}4 is higher than that reported for other types of atmospheric {PM}, whereas the {OPAA} of {DD}4 is similar and/or slightly higher. {C}ross-correlation and multilinear regression analyses are applied using datasets of major mineral and geochemical patterns in the {DD}4 samples and the respective {OP} values to identify the major drivers for {OP} in respirable coal dust. {T}hereafter, the patterns of {DD}4 are compared with those of {DD}500 and the parent coals to determine the sources of {OP}-relevant substances. {OP}({DTT} )is mainly governed by some trace elements ({S}b, {A}s, {L}i, {B}, {S}r, and {P}b) and minor minerals (anatase, quartz, siderite), and their synergistic effect may be one of the reasons for the high {DTT} consumption. {F}or {OPAA}, quartz, total clay (sum of illite, kaolinite, tobelite, and clinochlore) and {N}i, {C}r, {C}o, {S}i, and {S}, play an important role in regulating the {OPAA} of pyrite-free {DD}4 samples. {T}hese {OP}-relevant substances have three sources: coal dust, which has a similar composition in {DD}4, {DD}500, and the parent coal (such as siderite and its associated elements); gangue dust, which does not occur in the parent coal but is widely detected in {DD}4 and {DD}500 (such as quartz, kaolinite, and relevant elements); and cement dust (from gunite galleries), which is mainly calcite-and calcite-associated elements.},
  keywords = {{R}espirable dust ; {M}ineralogy ; {G}eochemistry ; {O}xidative potential ; {S}ource apportionment ; {CHINE} ; {HENAN} {PROVINCE}},
  booktitle = {},
  journal = {{I}nternational {J}ournal of {C}oal {G}eology},
  volume = {258},
  numero = {},
  pages = {104017 [16 p.]},
  ISSN = {0166-5162},
  year = {2022},
  DOI = {10.1016/j.coal.2022.104017},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085225},
}