: Most of the heavy metals in urban environments derives from road traffic, particularly from tyres and brake wear (non-exhaust emission sources). These pollutants contaminate the soil, where several organisms have a primary ecosystem role (e.g., springtails, ants, earthworms). Springtails (Collembola) are soil-dwelling animals regulating soil fertility, flow of energy through above- and below-ground food webs, and they contribute to soil microbial community dispersion and biodiversity maintenance. In this study we investigated the ecotoxicological effects of oral exposure to particles emitted from brake pads and cast-iron brake discs in the euedaphic collembola species Orthonychiurus folsomi under laboratory conditions. Our results showed that chronic exposure to brake wear particles can have sub-lethal effects both at low and high concentrations and it can cause histological alterations. Here, SEM-EDX was applied to observe the particulate and we found its chemical markers in the gut and faeces of collembola, while histological analysis detected alterations of the digestive and reproductive systems and of the abdominal fat body at high concentrations.

Papa, G., Power, K., Forestieri, B., Capitani, G., Maiolino, P., Negri, I., Effects of oral exposure to brake wear particulate matter on the springtail Orthonychiurus folsomi, <<ENVIRONMENTAL POLLUTION>>, 2023; 329 (n/a): 121659-N/A. [doi:10.1016/j.envpol.2023.121659] [https://hdl.handle.net/10807/236394]

Effects of oral exposure to brake wear particulate matter on the springtail Orthonychiurus folsomi

Papa, Giulia;Forestieri, Bartolo;Negri, Ilaria
2023

Abstract

: Most of the heavy metals in urban environments derives from road traffic, particularly from tyres and brake wear (non-exhaust emission sources). These pollutants contaminate the soil, where several organisms have a primary ecosystem role (e.g., springtails, ants, earthworms). Springtails (Collembola) are soil-dwelling animals regulating soil fertility, flow of energy through above- and below-ground food webs, and they contribute to soil microbial community dispersion and biodiversity maintenance. In this study we investigated the ecotoxicological effects of oral exposure to particles emitted from brake pads and cast-iron brake discs in the euedaphic collembola species Orthonychiurus folsomi under laboratory conditions. Our results showed that chronic exposure to brake wear particles can have sub-lethal effects both at low and high concentrations and it can cause histological alterations. Here, SEM-EDX was applied to observe the particulate and we found its chemical markers in the gut and faeces of collembola, while histological analysis detected alterations of the digestive and reproductive systems and of the abdominal fat body at high concentrations.
2023
Inglese
Papa, G., Power, K., Forestieri, B., Capitani, G., Maiolino, P., Negri, I., Effects of oral exposure to brake wear particulate matter on the springtail Orthonychiurus folsomi, <<ENVIRONMENTAL POLLUTION>>, 2023; 329 (n/a): 121659-N/A. [doi:10.1016/j.envpol.2023.121659] [https://hdl.handle.net/10807/236394]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/236394
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 4
  • ???jsp.display-item.citation.isi??? ND
social impact