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    Security features of the new naira notes revealed by the CBN

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    They want to starve us of funds – IPOB DOS cries out

    ‘Elements’ in Aso Villa want APC to lose election –  El-Rufai

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    2022 financial year: UAC of Nigeria posts N2.69 billion loss

    2022 financial year: UAC of Nigeria posts N2.69 billion loss

    Flour Mills of Nigeria Plc makes over N1 Trillion Revenue in 9 Months

    Flour Mills of Nigeria Plc makes over N1 Trillion Revenue in 9 Months

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    FACT CHECK: Did Buhari inherit lowest oil production as Tinubu claims?

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    Security features of the new naira notes revealed by the CBN

    JUST IN: CBN orders banks to begin payment of new notes over the counter

    Atiku heads to Europe on ‘business trip’

    Why CBN should not extend naira swap deadline – Atiku

    Kwankwaso not stepping down for Atiku, Tinubu – Campaign spokesperson

    NNPP not having merger discussion with any party – Kwankwaso

    Hoodlums attack INEC office in Anambra, destroy ballot boxes

    Hoodlums attack INEC office in Anambra, destroy ballot boxes

    Place Peter Obi on terror watch list – Keyamo tasks security agencies

    Obi not in talks with Atiku, won’t step down — Campaign Council

    Obanikoro tells court how he gave Fayose N1.2bn from Lagos Security Account

    Obanikoro tells court how he gave Fayose N1.2bn from Lagos Security Account

    They want to starve us of funds – IPOB  DOS cries out

    They want to starve us of funds – IPOB DOS cries out

    ‘Elements’ in Aso Villa want APC to lose election –  El-Rufai

    ‘Elements’ in Aso Villa want APC to lose election – El-Rufai

    Suspected herdsmen ambush Benue policemen, kill DPO

    Suspected herdsmen ambush Benue policemen, kill DPO

    • Nigeria
    • Africa
    • World
  • Economy
    • All
    • Budgets
    • Economic Data
    • Policies
    Nigeria’s total public debt rises by over 20% YoY to N32.92 trillion

    FG explains why Nigeria’s total debt will rise to N77 trillion by the end of May 2023

    U.S unemployment fell to a five-decade low

    U.S unemployment fell to a five-decade low

    Nigeria’s total public debt rises by over 20% YoY to N32.92 trillion

    Nigeria’s total debt rise above N44 trillion – DMO

    FG approves 39 licences for fish importation

    Q3 2022: Nigeria’s total trade stood at N11.6 trn, total export falls nearly 20% QoQ

    Update: Central Bank of Nigeria instructs banks to close accounts related to Crypto

    JUST IN: CBN limits weekly cash withdrawal to N100k

    Law to legalize crypto as a payment method passed in Brazil

    Law to legalize crypto as a payment method passed in Brazil

    Will Nigerians in diaspora be committing an offence if they make a campaign donation?

    Rivers and Oyo State to join others in establishing small claims courts

    Non-oil sector contributes 93.67% to Nigeria’s GDP in Q2 2022

    Nigeria’s GDP growth slows to 2.25% in Q3 2022, oil sector contribution declines further

    Buhari to unveil new naira notes Wednesday — no longer Dec 15

    Buhari to unveil new naira notes Wednesday — no longer Dec 15

    • Policies
    • Budgets
    • Economic Data
  • Markets
    • All
    • Commodities
    • Cryptocurrencies
    • Forex
    • Rates & Bonds
    • Stocks/Equities
    Nigeria’s GDP grows 5.01% YoY in real terms in Q2 2021

    Equities Market Recorded Gains… As NGX-ASI Grows Marginally By 0.49%

    Equity Market turns bearish… As Value Traded Spikes by 409.01%

    The Local bourse Closed The Week Bearish… As the NGX-ASI fell by 0.18%.

    Local Bourse closed in Bullish Territory… As NGX-ASI at 0.31%

    NGX-ASI Turns Bullish…As Oil & Gas sector closed at a Gain of 1.58%

    The Okomu Oil Palm Plc announces N7.00 interim dividend for H1 2022

    Local Bourse Records 2nd Day Loss…… As NGX-ASI Decreases by 0.02%

    FGN Savings Bond rate rises above 12% in September 2022

    DMO offers N360 bn FGN Bonds for subscription in January

    FY 2020: Nigerian Breweries Plc reports 54.3% decline in profit

    Sellers Sway the Performance of the Equities Market… As NGX-ASI Dips By 0.09%

    MTN Nigeria Communications Plc announces Board Meeting and close period for Q1 2021

    MTN Nigeria set to allot ‘incentive shares’ to shareholders

    Nestle Nigeria Plc announces Board meeting to consider 2020 accounts and dividend

    NGX-ASI Depreciated by 2.03%… As Year-to-Date slides down to 2.62%

    NGX Reg lifts suspension on Trading of Niger Insurance Plc’s shares

    NGX Reg lifts suspension on trading of International Energy Insurance Plc shares

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    2022 financial year: UAC of Nigeria posts N2.69 billion loss

    2022 financial year: UAC of Nigeria posts N2.69 billion loss

    Flour Mills of Nigeria Plc makes over N1 Trillion Revenue in 9 Months

    Flour Mills of Nigeria Plc makes over N1 Trillion Revenue in 9 Months

    Geregu Power Plc announces first Dividend since listing on NGX

    Geregu Power Plc announces first Dividend since listing on NGX

    MTN Nigeria proposes N23bn Commercial Paper

    MTN Nigeria’s Board of Directors approve payment of N10.00 final dividend for 2022 FY

    Stanbic IBTC Holdings Plc grow profit by 42% to N81bn in 2022

    Stanbic IBTC Holdings Plc grow profit by 42% to N81bn in 2022

    Directors of Geregu Power Plc approve dividend declaration for 2022 FY

    Directors of Geregu Power Plc approve dividend declaration for 2022 FY

    NPF Microfinance Bank Shareholders approve 20k dividend

    NPF Microfinance Bank reports 77.79% growth in Profit for 2022 financial year

    UBA suffers maximum possible loss on NSE as investors dump the stocks

    UBA Africa gets first female CEO

    CAP Plc posts N2.08bn profit in 2022, 85.95% YoY growth

    CAP Plc posts N2.08bn profit in 2022, 85.95% YoY growth

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    North-West, South-West lead as INEC registers 96.2 million, Rivers overtakes Katsina

    ELECTION: How to check your polling unit, code online

    4 things to consider before buying a laptop

    4 things to consider before buying a laptop

    How to move to Canada by starting a business – Part 1

    How to move to Canada by starting a business – Part 2

    How to move to Canada by starting a business – Part 1

    How to move to Canada by starting a business – Part 1

    Building a Successful Business Organization: Lessons from the Bible

    Building a Successful Business Organization: Lessons from the Bible

    2023 Bible Lessons on Setting your Financial/Investment Goals

    2023 Bible Lessons on Setting your Financial/Investment Goals

    Fact check: Is the Investment Peter Obi made for Anambra State worth next to nothing?

    Fact check: Is the Investment Peter Obi made for Anambra State worth next to nothing?

    37 years between the Buhari regimes… Economic lamentations remain the same

    37 years between the Buhari regimes… Economic lamentations remain the same

    FACT CHECK: Did Buhari inherit lowest oil production as Tinubu claims?

    FACT CHECK: Did Buhari inherit lowest oil production as Tinubu claims?

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Home Opinion & Analysis Columnists

Face masks protect against aerosolized toxins from algal blooms, study finds

Tuesday, 10 August 2021, 5:08 pm
in Columnists, Opinion & Analysis
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Face masks protect against aerosolized toxins from algal blooms, study finds
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Intense blooms of toxic algae are becoming common occurrences along the coast of Florida and elsewhere. Results from a new study led by University of Miami (UM) scientists found that wearing the face mask everyone has become accustomed to during the COVID-19 pandemic may help protect against these airborne toxins too.

The UM Rosenstiel School of Marine and Atmospheric Science researchers designed an experiment to understand how effective commonly available air conditioner filters and face masks are at filtrating out the toxins emitted during harmful algal blooms events.

“We found that face masks and air conditioner filters with high-performance ratings can reduce the risk of exposure by filtering out small, toxin-containing particles,” said the study’s lead author Cassandra Gaston, an assistant professor of atmospheric science at the UM Rosenstiel School.

“These filter materials can also be effective at filtering out other kinds of small particles as well”, said Haley Router, a co-first author of the study and Ph.D. student at the UM Rosenstiel School’s Department of Atmospheric Sciences. “As we all know by now, face masks are essential in preventing the transmission of COVID-19 from person to person.”

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Harmful algal blooms often referred to as red tides and blue-green algae, are exacerbated by nutrient-rich runoff from agriculture and industrial waste that ends up in waterways. Noxious particles enter the air mostly from the breaking of waves, resulting in airborne toxins that cause serious health problems to humans and marine life. Airborne toxins can also affect indoor air quality particularly for businesses and homes near contaminated waterways.

To conduct the experiment, the researchers created a bubbling device to produce airborne toxin-containing particles in the lab by bubbling air into the liquid containing cultures of toxic-producing blue-green algae, Microcystis aeruginosa. Cutouts of three types of face masks and six types of AC filters purchased from home improvement stores were placed in line with generated particles to determine how well the masks and filters blocked particles of different sizes. The researchers used N95, disposable surgical masks and medical-grade, odour-filtering carbon fibre masks. For AC filters, the researchers used filters for window units and central air conditioning units with different filter performance ratings.

They found that AC filters filtered out 20-90 per cent of the airborne particles with particles filtration increasing with increasing filter performance rating. Face masks filtering out over 90 per cent of toxin-containing particles. The findings suggest that low-cost, commercially available face masks and AC filters with high filtration efficiency ratings can help avoid both indoor and outdoor exposure to harmful algal blooms toxins in the air.

Harmful algal blooms are expected to become more prevalent worldwide due to climate change and increased nutrient runoff from a growing human population.

According to the researchers, the study also has relevance for the transmission of SARS-CoV-2, the virus responsible for the current COVID-19 pandemic. The virus has an average size of 60- 140 nanometers, which is within the size of particles investigated in the study.

By: Peace Chigozie

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Security features of the new naira notes revealed by the CBN

JUST IN: CBN orders banks to begin payment of new notes over the counter

Geregu Power Plc announces first Dividend since listing on NGX

Geregu Power Plc announces first Dividend since listing on NGX

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They want to starve us of funds – IPOB  DOS cries out

They want to starve us of funds – IPOB DOS cries out

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2022 financial year: UAC of Nigeria posts N2.69 billion loss

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Flour Mills of Nigeria Plc makes over N1 Trillion Revenue in 9 Months

Security features of the new naira notes revealed by the CBN

JUST IN: CBN orders banks to begin payment of new notes over the counter

Atiku heads to Europe on ‘business trip’

Why CBN should not extend naira swap deadline – Atiku

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