Hossain LAB

 Welcome to Hossain LAB, a dynamic hub of scientific innovation and interdisciplinary research dedicated to understanding and solving critical environmental challenges.

We specialize in environmental toxicology, ecology, and sustainable science, working at the intersection of biology and environmental health to create meaningful, real-world impact.

 Our Mission

To advance scientific knowledge and develop innovative solutions for environmental protection, ecological sustainability, and human health through cutting-edge research and collaboration.

Advancing the Sustainable Development Goals (SDGs) at Hossain LAB.

 Our Focus Areas

• Environmental Toxicology & Risk Assessment
• Ecology & Biodiversity Conservation
• Pollution Monitoring & Control
• AI-driven Environmental Analysis
• Climate & Public Health Research

 What We Do

• Conduct high-impact research on pollutants and ecosystems
• Develop data-driven and AI-based environmental solutions
• Train future scientists and researchers
• Collaborate with national and international institutions

 Join Us in Making a Difference

At Hossain LAB, we believe science can shape a healthier planet. Whether you are a student, researcher, or collaborator, we welcome you to be part of our journey toward sustainable innovation.

Potentially toxic elements (PTEs) in wild aesthetic plants (Cosmos)

 
Abstract

Anthropogenic activities and fast industrial growth influence the level of PTEs in the soil and the food chain. The contents of PTEs were examined in two wild Cosmos species (C. bipinnatus and D. cosmos) from Jiangsu City, using chemical and AAS methods to determine the risk to human health. The highest mean concentrations of PTEs in plants showed statistically significant (p < 0.05) differences between diverse plant parts and followed the decreasing order Mn (85.0 mg kg-1 in flower) > Zn (62.0 mg kg-1 in flower) > Cu (12.0 mg kg-1 in flower) > Cr (4.3 mg kg-1 in root) > Ni (0.97 mg kg-1 in root) > Cd (0.38 mg kg-1 in root) > Pb (0.03 mg kg-1 in shoot) > As (0.025 mg kg-1 in root). The highest values of Cr, Mn, Zn, and Cd in plant samples exceeded the permitted limit. While the quantity of Cr in the soil sample was high, the transfer coefficients (K) were high for Zn and Mn. The high percentage of Mn in roots was 68% and 61%, respectively, for C. bipinnatus and D. cosmos. The THQ values for Mn and HI exceeded 1 in all plant parts, except for the D. cosmos shoot (S2) and flower (F2). The assessment revealed that they are indicating a potential non-carcinogenic risk in human health. The TCR values for Cd and Ni showed a potential carcinogenic risk in adult and child health. This study reveals, for the first time, that wild Cosmos plants in an urban environment accumulate PTEs at levels posing a potential human health risk. The key risk metrics (HI > 1, TCR for Cd/Ni > 10-4) are highlighting significant health concerns. It is recommended to limit the use of urban-grown wild Cosmos plants for food purposes until further safety assessments are conducted.

Keywords: Cosmos; Environment; Health risk; PTEs; Plant.

Citation: 

Hossain, M.M., Tu, S., Han, S. et al. Human health risk assessment from potentially toxic elements (PTEs) in wild aesthetic plants (Cosmos): PTE concentration and distribution. Environ Monit Assess 198, 694 (2026). https://doi.org/10.1007/s10661-026-15545-1.

© 2026. The Author(s), under exclusive licence to Springer Nature Switzerland AG.

World Fish Migration Day 2026 : Run For The River

CBEES and BCFRC celebrated World Fish Migration Day 2026 Bangladesh as "Run for the River" by the supporter of Dr. Md. Muzammel Hossain. Mentor Dr. Md. Muzammel Hossain visited at the Old Brahmaputra River area and perform the activities with child and adult tourist people. Rising awareness to conserve river ecosystem and migratory fish.

Once upon a time, in a small village nestled beside a river, the community faced a growing problem. The river that once flowed abundantly was slowly drying up. The villagers knew they had to act before it was too late.

One bright morning, a young girl named Mariam decided to organize a run—an event called "Run for the River." She believed that if everyone came together, they could raise awareness and inspire change. She spread the word, and soon, people of all ages signed up to participate.

On the day of the run, the village was alive with energy. Children, elders, farmers, and traders all took part, running along the riverbank. As they moved, they remembered the times when the river was full of life—children swimming, boats sailing, and fish darting beneath the surface.

After the run, the villagers gathered and pledged to take action. They planted trees along the banks, cleaned up trash, and used water more wisely. The community realized that their efforts, big or small, could make a difference.

The river gradually began to recover, flowing stronger and clearer than before. The "Run for the River" had not only raised awareness but also united the villagers in a shared purpose.

From that day on, every year, they ran again—celebrating their river and reminding everyone that caring for nature starts with a single step. And together, they ensured that the river would continue to flow for generations to come.

#weareriverpeople #wfmd2026 #WFMD #WorldFishMigrationDay

World Bee Day 2026

"Happy World Bee Day!

Bees are part of the biodiversity on which we all depend for our survival.

Agri queen species, bees are remarkable bio-indicators whose hive behaviors, foraging patterns, and reliance on flowers reveal crucial environmental data. By studying them, we can learn how tiny, decentralized actions maintain global ecosystems, providing valuable lessons in climate action, weather anticipation, and sustainable water management. By pollinating plants and trees, bees directly facilitate the growth of ecosystems that store carbon in the soil and mitigate extreme local heat. Bees can predict approaching storms. It is an act of gratitude for the interconnected web of life that sustains us all.

Let's celebrate these amazing pollinators who play a vital role in our ecosystems and food security. May we continue to protect and cherish bees for a healthier, sweeter planet.

Buzzing with gratitude and hope!"

Dr. Md. Muzammel Hossain
Director, CBEES

Soil, Water, and Environment

Soil: Soil is a vital natural resource that serves as the foundation for plant growth and supports a wide range of organisms. It is composed of minerals, organic matter, water, and air. Healthy soil is essential for agriculture, forestry, and maintaining biodiversity. However, soil can be degraded by erosion, pollution, deforestation, and improper farming practices, which can lead to reduced fertility and environmental imbalance.

Water: Water is crucial for all forms of life and covers about 71% of the Earth's surface. It exists in various forms—rivers, lakes, groundwater, glaciers, and oceans. Freshwater resources are vital for drinking, agriculture, industry, and sanitation. Pollution from industrial waste, sewage, and chemicals threatens water quality and availability, leading to health issues and ecosystem damage. Conservation of water resources is essential for sustainable development.

Environment:The environment encompasses all living and non-living elements that interact in the Earth’s biosphere. It includes air, water, soil, plants, animals, and the climate. Human activities such as industrialization, deforestation, and pollution have significantly impacted the environment, causing problems like climate change, loss of biodiversity, and pollution. Protecting and sustainably managing the environment is crucial for the well-being of all living organisms and future generations.

In summary, soil and water are fundamental components of the environment that support life on Earth. Ensuring their health and sustainability is key to maintaining ecological balance and addressing global environmental challenges.

Heavy metal pollution in freshwater fish and human health risk

The Turag-Tongi-Balu river channel is a vital water body providing water for domestic, agricultural, and industrial use. However, increasing pollution from industrial effluents, domestic waste, and agricultural runoff has led to contamination of the water and aquatic life, particularly fish. Dr. Hossain investigated the immediate health risks related to the concentration of heavy metals in contaminated freshwater fishes from the river channel of Turag-Tongi-Balu.

Journal : Environmental Toxicology

https://doi.org/10.1002/tox.23959

Supported By BCFRC

World Wildlife Day 2026

 

Per- and Polyfluoroalkyl Substances (PFAS): An Overview

PFAS are a large group of synthetic chemicals characterized by strong carbon-fluorine bonds, granting them stability and resistance to heat, water, and oil. They are widely used in industrial applications, consumer products, and firefighting foams.

Environmental Presence:

Due to their persistence, PFAS are found globally in soil, water, and biota, raising concerns about ecological and human health.

Exposure in Biota

Bioaccumulation and Biomagnification: PFAS tend to bioaccumulate in aquatic and terrestrial organisms, moving up the food chain. They are detected in fish, birds, mammals, and humans.

Toxicological Effects: 

Liver damage: Altered lipid metabolism, hepatomegaly.

Immune suppression: Reduced vaccine efficacy, immune cell dysfunction.

Endocrine disruption: Hormone level alterations, reproductive issues.

Developmental toxicity: Birth defects, developmental delays.

Carcinogenic potential: Some PFAS are classified as possibly carcinogenic. 

Hossain et al. 2025 reported that Per- and polyfluoroalkyl substances (PFAS) exposure in biota and remediation strategies: Toxicological and biochemical perspectives. 

Highlighted following points.

• PFAS concentration showed in plant, finfish and shellfish.
• Represented detoxification processes for PFAS.
• Changes metabolic routes for N and C.
• Represented enzyme and non-enzymes activities.
• Impacts of PFAS showed in different species.

Mechanisms of Toxicity: PFAS interact with nuclear receptors (e.g., PPARα), disrupting lipid and glucose metabolism, and induce oxidative stress, leading to cellular damage.

Remediation Strategies

Physical Methods: 

Activated Carbon Adsorption: Effective for water purification but limited by saturation

Ion Exchange Resins: Target specific PFAS compounds, useful for water treatment

Membrane Filtration: Nanofiltration and reverse osmosis remove PFAS but are energy-intensive

Chemical Methods: 

Advanced Oxidation Processes: Limited effectiveness due to PFAS stability.

Chemical Destruction: Emerging techniques such as electrochemical oxidation and high-temperature incineration.

Biological Methods: 

Bioremediation: Research ongoing; certain microbes show potential for PFAS degradation, though typically slow and limited.

Phytoremediation: Use of plants to uptake PFAS, still under investigation.

Emerging Technologies: 

Supercritical Water Oxidation: Potential for complete mineralization.

Electrochemical Degradation: Promising for specific PFAS compounds.

Reference: 

Hossain M.M., Nawaz, MZ., Dar, MA., et al. (2025) Per- and polyfluoroalkyl substances (PFAS) exposure in biota and remediation strategies: Toxicological and biochemical perspectives. Journal of Hazardous Materials Advances 17,  100579. https://doi.org/ 10.1016/j.hazadv.2024.100579.

Welcome to Abdullah Al Nahian at CBEES

Abdullah Al Nahian is a dedicated researcher and professor specializing in environmental toxicology. His work focuses on assessing the impact of various toxic substances on ecosystems and human health. Through his research, Abdullah aims to understand the mechanisms of toxicity and develop strategies for mitigating environmental hazards. His contributions have been instrumental in advancing knowledge in the field, and he is recognized for his meticulous approach and commitment to environmental protection. Abdullah Al Nahian's expertise in environmental toxicology makes him a valuable contributor to efforts aimed at promoting a healthier and safer environment.

Abdullah Al Nahian

nahian@aqiu-edu.com, a.nahian43@yahoo.com 

Biography

MSc, BSc – University of Chittagong, Bangladesh

Research Area

Molecular Biology, Genetics, Environmental Toxicology etc. 

IFFAT JAHAN

jahan@aqiu-edu.com

Biography 

MSc in Chemistry, Mawlana Bhashani Science and Technology University

BSc in Chemistry, Mawlana Bhashani Science and Technology University

Research Area

Heavy metal, Remediation, Pollutant, Risk Assessment, etc.

Welcome to Iffat Jahan at CBEES

Welcome to Iffat Jahan at CBEES as Research Fellow. She graduated from Mawlana Bhashani Science and Technology University, Bangladesh. Her research interest in heavy metal, remediation and risk assessment.   

Iffat Jahan is a distinguished Research Fellow at CBEES. She has made significant contributions to her field through her rigorous research and innovative approach. Her work at CBEES reflects her dedication to advancing knowledge and addressing critical issues. As a highly respected researcher, Iffat Jahan continues to contribute valuable insights and foster academic excellence within the institution.

Run For The River

Theme: Run For The River

Date: May 23, 2026

Organised:  CBEES & BCFRC

Event Coordinator: Dr. Md Muzammel Hossain

Run through a "water" obstacle, such as a series of foam blocks or a shallow water pit, to simulate the river's role as a habitat for aquatic life.

Run along a "riverbank" or a designated path lined with trees or other vegetation to represent the river's ecosystem.

Run through a simulated "cityscape" or a busy area to highlight the importance of rivers for human needs, such as water supply and transportation.

Run through a "polluted" area, marked by obstacles or challenges such as "oil slicks" or "chemical spills," to raise awareness about the environmental impact of human activities on rivers.

Run uphill or on uneven terrain to replicate the river's course through mountains, canyons, and valleys.

Run up a small hill or incline to simulate the melting of glaciers, which is a primary source of many rivers.

Virtual run is a flexible, non-competitive running event that participants can complete at their own convenience and location within a specified time frame. It allows individuals to run, walk, or jog anywhere—such as parks, trails, treadmill, or streets—while still participating in a collective event. Jog or walk along a winding path, symbolizing the meandering journey of a river from its source.

Inquire or contact : Dr. Md Muzammel Hossain (muzammel3@gmail.com ).

For Details visit on WFMD