Yumna Sadef

Yumna Sadef


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2017 in Journal of Hazardous Materials
Verified
Journal Article
Closed access
LVLaura Vallecillos
Laura Vallecillos
YSYumna Sadef
Yumna Sadef
FBFrancesc Borrull
Francesc Borrull
EPEva Pocurull
Eva Pocurull
KBKai Bester
Kai Bester

1 October 2014 in Science of The Total Environment
Verified
Journal Article
Closed access
YSYumna Sadef
Yumna Sadef
TPTjalfe Gorm Poulsen
Tjalfe Gorm Poulsen
KBKai Bester
Kai Bester

1 October 2016 in Waste Management
Verified
Journal Article
Closed access
YSYumna Sadef
Yumna Sadef
TPTjalfe G. Poulsen
Tjalfe G. Poulsen
KHKashif Habib
Kashif Habib
M. Tariq IqbalM. Tariq Iqbal
M. Tariq Iqbal
Abdul-Sattar NizamiAbdul-Sattar Nizami
Abdul-Sattar Nizami

1 November 2014 in Waste Management
Verified
Journal Article
Closed access
YSYumna Sadef
Yumna Sadef
TPTjalfe Gorm Poulsen
Tjalfe Gorm Poulsen
KBKai Bester
Kai Bester

27 July 2022 in Environmental Monitoring and Assessment
Verified
Journal Article
Closed access
PDF file
SGSyed Wajih Ul Hassan Shah Gillani
Syed Wajih Ul Hassan Shah Gillani
YSYumna Sadef
Yumna Sadef
MIMuhammad Imran
Muhammad Imran
HRHafiz Muhammad Fahad Raza
Hafiz Muhammad Fahad Raza
AGAamir Ghani
Aamir Ghani
SHShabbir Hussain
Shabbir Hussain

6 August 2021 in Sustainability
Verified
Journal Article
Open access
PDF file
MAMehreen Arshad
Mehreen Arshad
YSYumna Sadef
Yumna Sadef
Muhammad Bilal ShakoorMuhammad Bilal Shakoor
Muhammad Bilal Shakoor
MNMuhammad Naeem
Muhammad Naeem
FBFarzana Bashir
Farzana Bashir
MAMohammed Alyemeni
Mohammed Alyemeni
Generally white color of the skin is regarded as a feature of superiority and prettiness around the world. Both the males and females in Pakistan apply skin-lightening creams (SLC) but they do not know about the side-effects of their constituents. Skin-lightening products include SLC and related ointments. The SLC are made by mixing fates and water in standard procedure. Here, 20 SLC specimens were obtained and subjected to mercury, hydroquinone and the total plate count (TPC). The hydroquinone in SLC was determined using HPLC, mercury level was assessed by ICP OES and finally TPC were computing by utilizing nutrient media (Agar). The hydroquinone in SLC ranged from 0 to 7.14 ± 0.18% with a median value of 0.33%. In 25% of the studied samples, hydroquinone was not detected, 70% of the samples showed values within the limit and 5% of the samples (1 sample) had a hydroquinone concentration above the permissible limit defined by Pakistan (5%). The mercury ranged 0-7.7 ppm, with a median value of 2.5 ppm. Mercury was detected in 95% of the samples; thus, only 5% of the samples had no mercury. In turn, 20% had mercury within the limit value while 75% of the samples had concentration above the Pakistan standard limit (1 ppm). Moreover, TPC obtained in this study was less than the allowable value set according to European Union (EU). Hence, the SLC samples showed high concentration of toxic constituents which could cause deleterious skin diseases. Government must monitor such kind of cosmetic products regularly in order to reduce the danger.