🌫️ Men's Health

Air Pollution & Health in Nigerian Cities

Protecting yourself from air pollution in Lagos, Abuja, Kano and Port Harcourt

Nigeria has some of the worst urban air quality in Africa. Major contributors include petrol generator exhaust, vehicle emissions, open burning of waste, industrial pollution in Port Harcourt (oil flaring), dust, and charcoal cooking. Lagos, Kano, and Port Harcourt frequently record particulate matter (PM2.5) levels many times above WHO safe limits. Air pollution causes or worsens respiratory diseases, heart disease, stroke, and cancers — and is responsible for an estimated 114,000 Nigerian deaths annually.

Signs and Symptoms

✓ Cough, wheeze, and shortness of breath that worsen when outdoors or after generator use

✓ Eye irritation, redness, and tearing

✓ Frequent headaches, especially in traffic or near generators

✓ Worsening of asthma, COPD, or chronic bronchitis during high pollution days

✓ Children: recurrent respiratory infections, poor lung development

✓ Long-term: increased risk of lung cancer, heart attack, and stroke

Risk Factors

Living near high-traffic roads, industrial areas, or oil flaring sites (Niger Delta)
Using petrol generators indoors or in poorly ventilated spaces — a major cause of carbon monoxide poisoning in Nigeria
Cooking with firewood or charcoal without adequate ventilation
Occupations: commercial motorcycle riders (okada), traffic wardens, street vendors, petrol station attendants
Smoking — synergistic with air pollution in causing lung disease
Pre-existing asthma, COPD, or heart disease

When to Seek Help

Emergency — Carbon Monoxide PoisoningHeadache, dizziness, confusion, or loss of consciousness near a running generator — move outdoors IMMEDIATELY, call emergency services; CO is odourless, colourless, and rapidly fatal

Medical attentionWorsening cough or shortness of breath; frequent respiratory infections; asthma not controlled by usual reliever inhaler; persistent eye irritation

Occupational health assessmentPeople working in highly polluted environments should have annual lung function tests (spirometry) and blood pressure checks

Tests & Diagnosis

🧪 Spirometry (lung function test)

Measures airway obstruction and lung capacity — detects COPD, asthma, and industrial lung disease; available at chest clinics in teaching hospitals

🧪 Chest X-ray

Screens for lung damage, infections, and industrial lung disease

🧪 Full blood count

Chronic CO exposure raises red blood cell count (polycythaemia) — a sign of oxygen deprivation

🧪 Carboxyhaemoglobin level

Blood test measuring CO poisoning — should be tested in anyone suspected of CO exposure

🧪 Air quality apps

IQAir, AirVisual, and AQICN apps show real-time air quality index (AQI) for Nigerian cities — useful for planning outdoor activities

Treatment Options

Generator safety

NEVER run a generator indoors, in a garage, or near open windows; minimum 5 metres from any building entry; install a carbon monoxide alarm (cost ~₦3,000–₦8,000 at hardware stores)

Indoor air purification

Plants (peace lily, bamboo palm) improve air quality marginally; HEPA air purifiers significantly reduce indoor PM2.5 — effective in closed rooms during high-pollution days

Personal protection outdoors

N95 or FFP2 masks filter PM2.5 particles; surgical masks and cloth masks do not adequately filter fine particles; use during heavy traffic or outdoor work in polluted areas

Cooking: improve ventilation

Move cooking outside when using firewood/charcoal; use LPG (cleaner burning) where affordable; ensure kitchen windows and doors are open; use rocket stoves (more efficient, less smoke)

Medical management

Optimise asthma/COPD medications; use preventer inhalers (beclometasone) not just reliever; avoid outdoor exercise during high pollution days (>150 AQI); ensure all vaccinations including pneumococcal vaccine

Frequently Asked Questions

How dangerous is generator exhaust in Nigeria?

Extremely dangerous — generator CO poisoning is one of Nigeria's most underreported causes of sudden death. A 5KVA petrol generator produces as much CO as 700 cigarettes per hour. Never use indoors or near sleeping areas.

Are air quality masks effective?

N95 and FFP2 masks filter up to 95% of PM2.5 particles and are effective. Cloth masks and surgical masks do not adequately filter fine particulates. Ensure the mask fits snugly with no gaps.

Is Port Harcourt's air quality especially bad?

Yes — the Niger Delta's oil flaring produces a cocktail of carcinogenic compounds including benzene, PAHs, and heavy metals, making Port Harcourt residents particularly vulnerable to lung cancer, skin conditions, and developmental problems in children.

Can I check air quality before going out in Lagos?

Yes — use the IQAir or AirVisual app, or check aqicn.org/city/lagos for real-time AQI data. AQI above 100 is unhealthy for sensitive groups; above 150, limit outdoor exercise.

What plants help clean indoor air?

Peace lily, spider plant, snake plant, and bamboo palm can modestly improve indoor air quality — but they are no substitute for ventilation and source control. They are most useful in relatively clean indoor environments.