Overview
Environmental Engineering applies engineering principles to protect and improve the environment. It addresses some of the most pressing challenges of our time—water pollution, air quality, waste management, climate change mitigation, and sustainable infrastructure design. Environmental engineers design systems to treat drinking water, manage wastewater, control air emissions, remediate contaminated land, and minimize the environmental footprint of industrial processes.
The curriculum is grounded in chemistry, biology, fluid mechanics, and thermodynamics, then builds into specialized topics such as water and wastewater treatment, air pollution engineering, solid waste management, environmental impact assessment, and sustainable design. Laboratory and fieldwork are integral: students analyze water samples, model pollutant dispersion, and design treatment systems. Many programmes include a capstone project addressing a real environmental challenge, often in collaboration with industry partners or government agencies.
If you want to use engineering skills to make a tangible positive impact on the planet, environmental engineering is a deeply meaningful path.
As climate change intensifies, the world's top environmental engineering programmes are at the forefront of developing solutions for a sustainable future. MIT's Department of Civil and Environmental Engineering houses the Parsons Laboratory for Environmental Science and Engineering, where research spans water treatment membranes, atmospheric chemistry, and urban climate resilience. Stanford's environmental engineering programme, within the Department of Civil and Environmental Engineering, leverages the Stanford Woods Institute for the Environment and the Precourt Institute for Energy to tackle water-energy nexus challenges. UC Berkeley's programme is renowned for its strengths in air quality science, water systems, and environmental microbiology, with close ties to Lawrence Berkeley National Laboratory. ETH Zurich's Institute of Environmental Engineering integrates Swiss precision with global environmental challenges, leading research in sustainable water management and urban systems ecology.
In Singapore
Singapore faces unique environmental challenges as a small, densely populated island nation with limited natural water resources and a tropical climate. The government's push toward sustainability, NEWater technology, and the Singapore Green Plan 2030 create strong demand for environmental engineers. Graduates find roles in PUB (Singapore's National Water Agency), the National Environment Agency, engineering consultancies, and multinational firms working on sustainability.
Career Outcomes & Salary
What jobs can I get and how much will I earn?
$60,000–$80,000 (US) / £26,000–£36,000 (UK) / A$58,000–$78,000 (Australia)
$85,000–$135,000 (US) / £45,000–£70,000 (UK)
$120,000–$200,000+ (US)
Strong and growing. Environmental regulations are tightening globally, and climate change adaptation requires massive infrastructure investment. The US BLS projects 6% growth for environmental engineers through 2032, with higher growth in water treatment, PFAS remediation, and climate adaptation. Demand is particularly strong in consulting firms that need engineers for environmental impact assessments, compliance, and remediation projects.
Industry Trends & Outlook
Where is this field heading?
Environmental engineering is experiencing unprecedented demand driven by the global climate crisis, tightening environmental regulations, and growing public awareness of pollution and water scarcity. Water treatment is the profession's bedrock, and it's expanding in scope: emerging contaminants like PFAS (per- and polyfluoroalkyl substances), microplastics, and pharmaceutical residues are creating new treatment challenges that require engineers to develop advanced oxidation processes, membrane filtration systems, and novel adsorbent materials. The global water and wastewater treatment market exceeds $300 billion annually, with strong growth in Asia-Pacific, the Middle East, and sub-Saharan Africa where access to clean water remains a critical need.
Climate adaptation is creating a second wave of demand. Environmental engineers are designing stormwater management systems for cities facing more intense rainfall, coastal protection against sea level rise, and nature-based solutions like constructed wetlands and green infrastructure that provide water treatment alongside flood control and biodiversity benefits. Carbon capture and storage (CCS) technology—both point-source capture from power plants and direct air capture—is a rapidly growing field where environmental engineers work alongside chemical engineers. Circular economy initiatives, including industrial water recycling, waste-to-energy conversion, and materials recovery from waste streams, are also expanding.
AI and data analytics are modernising environmental engineering practice. Sensor networks and machine learning enable real-time monitoring and predictive management of water treatment plants, air quality systems, and contaminated sites. Digital twins of water distribution networks help utilities detect leaks and optimise chemical dosing. However, the regulatory, field-based, and site-specific nature of environmental engineering—where every contaminated site is unique and regulators require professional engineer oversight—means the profession is highly resistant to automation. For graduates, environmental engineering offers the rare combination of strong job security, meaningful work, and direct impact on public health and the planet.
AI & This Major
AI is augmenting environmental engineering practice. Machine learning optimises water treatment chemical dosing, predicts air quality, and improves contamination plume modelling. Sensor networks enable real-time environmental monitoring. However, the site-specific, regulatory, and field-intensive nature of environmental work means human judgment remains essential. Every contaminated site is unique, regulators require professional engineer sign-off, and field conditions can't be fully captured by algorithms.
What You'll Learn
Core topics and skills covered in this degree
Is This Right For Me?
Honest self-assessment to help you decide
You'll thrive if...
- ✓You care deeply about environmental protection and want to use engineering to solve real pollution and water quality problems
- ✓You enjoy chemistry and want to apply it to practical challenges—water treatment, air pollution control, and waste management rely heavily on chemistry
- ✓You like the combination of fieldwork and office-based design—environmental engineers regularly visit sites, collect samples, and see their designs built
- ✓You want a career with clear social purpose—clean water, clean air, and safe waste disposal are fundamental to public health
- ✓You're motivated by the climate crisis and want to work on adaptation, carbon capture, or sustainable infrastructure
Might not be for you if...
- ●You dislike chemistry—environmental engineering has more chemistry than most other engineering disciplines
- ●You want to work exclusively in a city office—many roles involve fieldwork at treatment plants, construction sites, or contaminated land
- ●You're looking for the highest possible starting salary—environmental engineering salaries are competitive but lower than CS or finance
- ●You prefer designing new technology over ensuring regulatory compliance—much of the work involves meeting environmental standards and permits
- ●You want rapid, visible results—environmental remediation projects can take years or decades to complete
A Day in the Life
What a typical week actually looks like
A typical week in Year 2 might look like this: Monday starts with a water treatment engineering lecture—you're learning about coagulation and flocculation processes, calculating the optimal dosage of aluminium sulphate for removing turbidity from a surface water source. The lecturer walks through jar test procedures and explains how zeta potential affects particle aggregation. After lunch, you have an environmental chemistry lab where you measure dissolved oxygen, biochemical oxygen demand (BOD), and nitrate concentrations in samples collected from a local river. The data tells a story about eutrophication and sewage discharge, and you start seeing how analytical chemistry connects to real-world environmental problems.
Tuesday brings an air pollution engineering lecture on atmospheric dispersion modelling—Gaussian plume models, stability classes, and how to predict the ground-level concentration of pollutants downwind of a smokestack. Your tutorial session has you designing a baghouse dust collector for a cement plant, sizing the filter area based on air-to-cloth ratio and collection efficiency requirements. Wednesday is your heaviest day: a hydrology and hydraulics lecture on flood frequency analysis (fitting a Log-Pearson Type III distribution to streamflow data) followed by your group design project. Your team of four is designing a constructed wetland to treat agricultural runoff from a dairy farm—today you're sizing the wetland cells, selecting plant species for nutrient uptake, and calculating hydraulic retention time to achieve target phosphorus removal.
Thursday opens with a solid waste engineering lecture on landfill design—liner systems, leachate collection, gas extraction, and post-closure monitoring. It's sobering to learn that a modern engineered landfill is essentially a carefully designed containment vessel with drainage systems, gas collection pipes, and decades of monitoring obligations. The afternoon is a geotechnical lab focused on soil permeability testing using a constant-head permeameter—data you'll need for a groundwater contamination transport problem set. Friday is lighter: a sustainability and life-cycle assessment seminar on comparing the environmental footprint of different packaging materials, followed by free time for MATLAB coding, lab report writing, or wetland design project work. Weekends can be busy during project deadlines, but there's a deep satisfaction in knowing that the systems you're learning to design—water treatment plants, air pollution controls, waste management systems—directly protect human health and the environment.
High School Preparation
What to study and do before university
Skills to Develop
- •Strengthen your chemistry beyond school level—environmental engineering relies heavily on water chemistry, reaction kinetics, and chemical equilibrium
- •Learn Python or MATLAB for data analysis—try analysing publicly available air quality or water quality datasets from government monitoring agencies
- •Understand the water cycle at a quantitative level: learn about rainfall-runoff modelling, groundwater flow, and mass balance calculations
- •Read about current environmental challenges: PFAS contamination, microplastics, carbon capture, urban stormwater management—develop informed opinions about engineering solutions
Extracurriculars
- •Join or start an environmental club at school—organise a water quality testing project in a local stream or lake
- •Volunteer with environmental organisations: river clean-ups, habitat restoration, or water quality monitoring programmes
- •Enter science fairs with an environmental engineering project—testing water filtration methods, measuring air pollution with low-cost sensors, or building a greywater recycling system
- •Visit a water treatment plant or waste processing facility to see environmental engineering in action
- •Take an online course on environmental science or water resources (Coursera, MIT OpenCourseWare) to explore the field beyond school
How This Compares to Similar Majors
Side-by-side with related fields
Getting In — Admissions Guide
How competitive is this major and how to stand out
Environmental engineering is moderately competitive—less so than CS or medicine, but with solid requirements at top programmes. UC Berkeley, Stanford, MIT, and the University of Michigan are among the strongest US programmes. In the UK, Imperial College London and UCL offer well-regarded programmes with A-Level requirements around A*AA. ETH Zurich and TU Delft are strong in Europe. IB students typically need 36–38+ with HL Chemistry and Mathematics at 6–7.
What Strengthens Your Application
- 1Strong results in chemistry, mathematics, and physics—chemistry is especially important for environmental engineering and distinguishes it from civil
- 2Environmental projects or volunteering: water quality testing, river clean-ups, sustainability initiatives, or environmental monitoring
- 3Understanding of current environmental issues: PFAS, microplastics, water scarcity, air pollution—demonstrate informed engagement, not just general concern
- 4Science fair projects with an environmental focus, or participation in environmental science competitions
- 5Basic programming skills (Python, R) for data analysis—increasingly valued in environmental monitoring and modelling
Common Mistakes to Avoid
- ●Confusing environmental engineering with environmental science or environmental studies—this is an engineering degree with heavy mathematics, chemistry, and physics requirements
- ●Writing a personal statement focused only on 'saving the planet' without demonstrating technical interest in how environmental systems are engineered
- ●Underestimating the chemistry requirement—environmental engineering involves significant environmental chemistry, water chemistry, and chemical kinetics
Interview & Admission Tests
Interviews are uncommon at most programmes. Where they exist (e.g., some UK universities), expect questions about your understanding of environmental challenges and why you chose engineering over environmental science. Being able to discuss a specific water treatment process or pollution control technology demonstrates genuine technical interest.
General Preparation
These recommendations cover general preparation across Singapore universities. Specific programme requirements may differ—detailed per-programme requirements coming soon.
IB Diploma
- •Mathematics AA HL (essential)
- •Chemistry HL (strongly recommended)
- •Physics HL (recommended)
- •Biology HL (helpful)
A-Level
- •H2 Mathematics (essential)
- •H2 Chemistry (strongly recommended)
- •H2 Physics (recommended)
AP
- •AP Chemistry (essential)
- •AP Calculus BC
- •AP Environmental Science (helpful)
- •AP Physics C (recommended)
IGCSE
- •Chemistry (essential)
- •Additional Mathematics (essential)
- •Physics (recommended)
- •Biology (helpful)
Skills & Aptitudes
NUS IB / A-Level admission requirements:NUS Admissions
NTU IB / A-Level admission requirements:NTU Admissions
Where to Study in Singapore
Similar Majors
Considering this major beyond Singapore?
View the global university major guide →
Frequently Asked Questions
What do you study in Environmental Engineering?
Environmental Engineering applies engineering principles to protect and improve the environment. It addresses some of the most pressing challenges of our time—water pollution, air quality, waste management, climate change mitigation, and sustainable infrastructure design. Environmental engineers design systems to treat drinking water, manage wastewater, cont…
What can you do after a Environmental Engineering degree?
Typical entry-level roles: Environmental Engineer, Water Resources Engineer, Environmental Consultant, Air Quality Engineer, Remediation Engineer (starting salary $60,000–$80,000 (US) / £26,000–£36,000 (UK) / A$58,000–$78,000 (Australia)). Key industries: Water & Wastewater Treatment, Environmental Consulting, Government Environmental Agencies, Mining & Remediation, Energy (Renewables & Fossil Fuel Compliance). Strong and growing. Environmental regulations are tightening globally, and climate change adaptation requires massive infrastructure investment. The US BLS proj…
Which high-school courses prepare you for Environmental Engineering?
Recommended IB courses: HL Mathematics: Analysis and Approaches, HL Physics, HL Chemistry; Recommended AP courses: AP Chemistry, AP Calculus BC, AP Physics C: Mechanics; Recommended A-Levels: Mathematics, Physics, Chemistry.
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